library(ISLR2)
library(ggplot2)

In case you need to write math expression, please use the quick tutorial as the reference: https://www1.cmc.edu/pages/faculty/aaksoy/latex/latexthree.html

Question 1

[5 pts] Describe a situation or problem from your job, everyday life, current events, etc., for which a classification model would be appropriate. List some (up to 5) predictors that you might use.

Solution to Question 1 There are many events which we can use in everyday life to classify the models or events in the market 1. Credit Score: A high Credit will have a secured loan where there will be low risk 2. Job Status and Secured House: A job with fixed income can pay their debts for the long time and any business can be filed in the UCC1 and UCC3 and approved from the jurisdiction 3.Aerospace Manufacturing: An Aerospace or Air Force plane manufacturing companies can plot the details for the new flights and get the raw data requirements, budget can be classified with the classification models and prepare the data for the further process. 4. Debt-to-Income Ratio: A lower ratio suggests that the applicant has manageable debt relative to their income. 5.Loan Amount: Larger loan amounts might increase the risk of default, especially if they exceed the applicant’s capacity to repay.

Question 2.

[5 pts] What’s the main difference between supervised and unsupervised learning? Give one benefit and drawback for supervised and unsupervised learning, respectively.

Solution to Question 2

`1. Supervised Learning: In supervised Machine Learning, the algorithm is trained on a dataset that is labeled, meaning each input is associated with corresponding target output. 2.Benefit: Supervised Machine learning is effective for tasks where the desired output is known, making it suitable for the tasks like classification and regression 3. Drawback: One drawback is that it relies heavily on the availability of the labeled data, which can be time consuming expensive to acquire, especially for large datasets or niche domains

  1. Unsupervised Learning:
  2. In Unsupervised learning, the algorithm is trained on unlabeled data, and its goal is to find is to find hidden patterns or structures within the data.
  3. Benefit: Unsupervised learning can uncover insights from data without the need for labeled examples, making it useful for exploratory data Analysis, clustering and anomaly detection.
  4. Drawback:Since unsupervised learning lacks explicit labels, evaluating the performance of the model can be more challenging compared to supervised learning. Additionally, interpreting the results may require human intervention to understand the discovered patterns or clusters.

Question 3 [18 pts]

This question relates to the College data set, which can be found in the file College.csv in the folder. It contains a number of variables for 777 different universities and colleges in the US. The variables are

  • Private : Public/private indicator
  • Apps : Number of applications received
  • Accept : Number of applicants accepted
  • Enroll : Number of new students enrolled
  • Top10perc : New students from top 10 % of high school class
  • Top25perc : New students from top 25 % of high school class
  • F.Undergrad : Number of full-time undergraduates
  • P.Undergrad : Number of part-time undergraduates
  • Outstate : Out-of-state tuition
  • Room.Board : Room and board costs
  • Books : Estimated book costs
  • Personal : Estimated personal spending
  • PhD : Percent of faculty with Ph.D.’s
  • Terminal : Percent of faculty with terminal degree
  • S.F.Ratio : Student/faculty ratio
  • perc.alumni : Percent of alumni who donate
  • Expend : Instructional expenditure per student
  • Grad.Rate : Graduation rate

Before reading the data into R, it can be viewed in Excel or a text editor.

  • (a). [2 pts] Use the read.csv() function to read the data into R. Call the loaded data college. Make sure that you have the directory set to the correct location for the data.

Solution to Question 3(a) put your solution here

# Read.csv file for the college data
file_path <- "/Users/adityasrivatsav/Documents/EAS508/HW 1/College.csv"
College <- read.csv(file_path)
  • (b). [2 pts] Look at the data using the View() function. You should notice that the first column is just the name of each university. We don’t really want R to treat this as data. However, it may be handy to have these names for later. Try the following commands:

  • rownames(college) <- college[,1 ]

  • View(college)

You should see that there is now a row.names column with the name of each
university recorded. This means that R has given each row a name corresponding to the appropriate university. R will not try to perform calculations on the row names. However, we still need to eliminate the first column in the data where the names are stored. Try

>college <- college[, -1]

> View(college)

Now you should see that the first data column is Private. Note that another column labeled row.names now appears before the Private column. However, this is not a data column but rather the name that R is giving to each row.

Solution to Question 3(b)

put your solution here

# Inspect the structure to confirm the correct column (assuming it's still the first column)
head(College)
##                              X Private Apps Accept Enroll Top10perc Top25perc
## 1 Abilene Christian University     Yes 1660   1232    721        23        52
## 2           Adelphi University     Yes 2186   1924    512        16        29
## 3               Adrian College     Yes 1428   1097    336        22        50
## 4          Agnes Scott College     Yes  417    349    137        60        89
## 5    Alaska Pacific University     Yes  193    146     55        16        44
## 6            Albertson College     Yes  587    479    158        38        62
##   F.Undergrad P.Undergrad Outstate Room.Board Books Personal PhD Terminal
## 1        2885         537     7440       3300   450     2200  70       78
## 2        2683        1227    12280       6450   750     1500  29       30
## 3        1036          99    11250       3750   400     1165  53       66
## 4         510          63    12960       5450   450      875  92       97
## 5         249         869     7560       4120   800     1500  76       72
## 6         678          41    13500       3335   500      675  67       73
##   S.F.Ratio perc.alumni Expend Grad.Rate
## 1      18.1          12   7041        60
## 2      12.2          16  10527        56
## 3      12.9          30   8735        54
## 4       7.7          37  19016        59
## 5      11.9           2  10922        15
## 6       9.4          11   9727        55
# Assuming the first column is correct and contains unique university names
# Let's ensure uniqueness
if(!anyDuplicated(College[,1])) {
  rownames(College) <- as.character(College[,1])
  College <- College[, -1] # Remove the first column after setting row names
} else {
  print("The first column contains duplicate values. Please check the data.")
}

# Now, you can safely use View(college) to inspect the modified dataframe
View(College)
  • (c).

    • (i). [2 pts] Use the summary() function to produce a numerical summary of the variables in the data set.
summary(College)
##    Private               Apps           Accept          Enroll    
##  Length:777         Min.   :   81   Min.   :   72   Min.   :  35  
##  Class :character   1st Qu.:  776   1st Qu.:  604   1st Qu.: 242  
##  Mode  :character   Median : 1558   Median : 1110   Median : 434  
##                     Mean   : 3002   Mean   : 2019   Mean   : 780  
##                     3rd Qu.: 3624   3rd Qu.: 2424   3rd Qu.: 902  
##                     Max.   :48094   Max.   :26330   Max.   :6392  
##    Top10perc       Top25perc      F.Undergrad     P.Undergrad     
##  Min.   : 1.00   Min.   :  9.0   Min.   :  139   Min.   :    1.0  
##  1st Qu.:15.00   1st Qu.: 41.0   1st Qu.:  992   1st Qu.:   95.0  
##  Median :23.00   Median : 54.0   Median : 1707   Median :  353.0  
##  Mean   :27.56   Mean   : 55.8   Mean   : 3700   Mean   :  855.3  
##  3rd Qu.:35.00   3rd Qu.: 69.0   3rd Qu.: 4005   3rd Qu.:  967.0  
##  Max.   :96.00   Max.   :100.0   Max.   :31643   Max.   :21836.0  
##     Outstate       Room.Board       Books           Personal   
##  Min.   : 2340   Min.   :1780   Min.   :  96.0   Min.   : 250  
##  1st Qu.: 7320   1st Qu.:3597   1st Qu.: 470.0   1st Qu.: 850  
##  Median : 9990   Median :4200   Median : 500.0   Median :1200  
##  Mean   :10441   Mean   :4358   Mean   : 549.4   Mean   :1341  
##  3rd Qu.:12925   3rd Qu.:5050   3rd Qu.: 600.0   3rd Qu.:1700  
##  Max.   :21700   Max.   :8124   Max.   :2340.0   Max.   :6800  
##       PhD            Terminal       S.F.Ratio      perc.alumni   
##  Min.   :  8.00   Min.   : 24.0   Min.   : 2.50   Min.   : 0.00  
##  1st Qu.: 62.00   1st Qu.: 71.0   1st Qu.:11.50   1st Qu.:13.00  
##  Median : 75.00   Median : 82.0   Median :13.60   Median :21.00  
##  Mean   : 72.66   Mean   : 79.7   Mean   :14.09   Mean   :22.74  
##  3rd Qu.: 85.00   3rd Qu.: 92.0   3rd Qu.:16.50   3rd Qu.:31.00  
##  Max.   :103.00   Max.   :100.0   Max.   :39.80   Max.   :64.00  
##      Expend        Grad.Rate     
##  Min.   : 3186   Min.   : 10.00  
##  1st Qu.: 6751   1st Qu.: 53.00  
##  Median : 8377   Median : 65.00  
##  Mean   : 9660   Mean   : 65.46  
##  3rd Qu.:10830   3rd Qu.: 78.00  
##  Max.   :56233   Max.   :118.00
  • (ii). [2 pts] Use the pairs() function to produce a scatterplot matrix of the first ten columns or variables of the data. Recall that you can reference the first ten columns of a matrix A using A[,1:10]. Briefly state your observations.
#Read the csv file
data <- read.csv("College.csv")
#Summarize the data
summary(data)
##       X               Private               Apps           Accept     
##  Length:777         Length:777         Min.   :   81   Min.   :   72  
##  Class :character   Class :character   1st Qu.:  776   1st Qu.:  604  
##  Mode  :character   Mode  :character   Median : 1558   Median : 1110  
##                                        Mean   : 3002   Mean   : 2019  
##                                        3rd Qu.: 3624   3rd Qu.: 2424  
##                                        Max.   :48094   Max.   :26330  
##      Enroll       Top10perc       Top25perc      F.Undergrad   
##  Min.   :  35   Min.   : 1.00   Min.   :  9.0   Min.   :  139  
##  1st Qu.: 242   1st Qu.:15.00   1st Qu.: 41.0   1st Qu.:  992  
##  Median : 434   Median :23.00   Median : 54.0   Median : 1707  
##  Mean   : 780   Mean   :27.56   Mean   : 55.8   Mean   : 3700  
##  3rd Qu.: 902   3rd Qu.:35.00   3rd Qu.: 69.0   3rd Qu.: 4005  
##  Max.   :6392   Max.   :96.00   Max.   :100.0   Max.   :31643  
##   P.Undergrad         Outstate       Room.Board       Books       
##  Min.   :    1.0   Min.   : 2340   Min.   :1780   Min.   :  96.0  
##  1st Qu.:   95.0   1st Qu.: 7320   1st Qu.:3597   1st Qu.: 470.0  
##  Median :  353.0   Median : 9990   Median :4200   Median : 500.0  
##  Mean   :  855.3   Mean   :10441   Mean   :4358   Mean   : 549.4  
##  3rd Qu.:  967.0   3rd Qu.:12925   3rd Qu.:5050   3rd Qu.: 600.0  
##  Max.   :21836.0   Max.   :21700   Max.   :8124   Max.   :2340.0  
##     Personal         PhD            Terminal       S.F.Ratio    
##  Min.   : 250   Min.   :  8.00   Min.   : 24.0   Min.   : 2.50  
##  1st Qu.: 850   1st Qu.: 62.00   1st Qu.: 71.0   1st Qu.:11.50  
##  Median :1200   Median : 75.00   Median : 82.0   Median :13.60  
##  Mean   :1341   Mean   : 72.66   Mean   : 79.7   Mean   :14.09  
##  3rd Qu.:1700   3rd Qu.: 85.00   3rd Qu.: 92.0   3rd Qu.:16.50  
##  Max.   :6800   Max.   :103.00   Max.   :100.0   Max.   :39.80  
##   perc.alumni        Expend        Grad.Rate     
##  Min.   : 0.00   Min.   : 3186   Min.   : 10.00  
##  1st Qu.:13.00   1st Qu.: 6751   1st Qu.: 53.00  
##  Median :21.00   Median : 8377   Median : 65.00  
##  Mean   :22.74   Mean   : 9660   Mean   : 65.46  
##  3rd Qu.:31.00   3rd Qu.:10830   3rd Qu.: 78.00  
##  Max.   :64.00   Max.   :56233   Max.   :118.00
#Showing first 10 columns as the matrix
pairs(data[, sapply(data[1:10], is.numeric)])

  • (iii). [3 pts] Use the plot() function to produce side-by-side boxplots of Outstate versus Private. Briefly state your observations.
boxplot(Outstate ~ Private, data = data, 
        xlab = "Private", 
        ylab = "Outstate", 
        main = "Boxplot of Outstate by Private", 
        col = c("blue","green"))

  • (iv).[2 pts] Create a new qualitative variable, called Elite, by binning the Top10perc variable. We are going to divide universities into two groups based on whether or not the proportion of students coming from the top 10 % of their high school classes exceeds 50 %.

> Elite <- rep("No", nrow(college))

> Elite[college$Top10perc > 50] <- "Yes"

> Elite <- as.factor(Elite)

> college <- data.frame(college , Elite)

Use the summary() function to see how many elite universities there are. Now use the plot() function to produce side-by-side boxplots of Outstate versus Elite.

Elite <- rep("No", nrow(College))
Elite[College$Top10perc > 50] <- "Yes"
Elite <- as.factor(Elite)

#Add Elite Variables to the College DataFrame
College <- data.frame(College, Elite)

#Summary of Elite Universities
summary(College$Elite)
##  No Yes 
## 699  78
# Plot side-by-side boxplots of Outstate versus Elite
boxplot(Outstate ~ Elite, 
data = College, 
xlab = "Elite", 
ylab = "Outstate", 
main = "Boxplot of Outstate by Elite", 
col = c("blue", "green"))

  • (v)[2 pts] Use the hist() function to produce some histograms with differing numbers of bins for a few of the quantitative variables. You may find the command par(mfrow = c(2, 2)) useful: it will divide the print window into four regions so that four plots can be made simultaneously. Modifying the arguments to this function will divide the screen in other ways.
# Set up the plot window to display four plots simultaneously in 2 * 2 Grid
par(mfrow = c(2, 2))
hist(College$Apps, breaks = 10, main = "Histogram of Apps (10 bins)")
hist(College$Accept, breaks = 20, main = "Histogram of Accept (20 bins)")
hist(College$Enroll, breaks = 30, main = "Histogram of Enroll (30 bins)")
hist(College$Outstate, breaks = 40, main = "Histogram of OutState (40 bins)")

  • (vi)[3 pts]. Continue exploring the data, and provide a brief summary of what you discover.
#university names with the most students in the top 10% of the class
row.names(College)[which.max(College$Top10perc)]
## [1] "Massachusetts Institute of Technology"
acceptance_rate <-College$Accept / College$Apps
#Lowest Acceptance Rate
row.names(College)[which.min(College$Top10perc)]
## [1] "Center for Creative Studies"
#Highest Acceptance Rate
row.names(College)[which.max(College$Top10perc)]
## [1] "Massachusetts Institute of Technology"
plot(Grad.Rate ~ Outstate, data = College)

#College with Low Acceptance Raate
plot(S.F.Ratio ~ I(Accept/Apps), data = College)

#The highest Graduation Rate
plot(Grad.Rate ~ Top10perc, data = College)

Question 4 [16 pts]

This exercise involves the Boston housing data set.

  • (a).[2 pts] To begin, load in the Boston data set. The Boston data set is part of the ISLR2 library.

> library(ISLR2)

Now the data set is contained in the object Boston.

> Boston

Read about the data set:

> ?Boston

How many rows are in this data set? How many columns? What do the rows and columns represent?

library(ISLR2)
data(Boston)
nrow(Boston)
## [1] 506
ncol(Boston)
## [1] 13
?Boston
str(Boston)
## 'data.frame':    506 obs. of  13 variables:
##  $ crim   : num  0.00632 0.02731 0.02729 0.03237 0.06905 ...
##  $ zn     : num  18 0 0 0 0 0 12.5 12.5 12.5 12.5 ...
##  $ indus  : num  2.31 7.07 7.07 2.18 2.18 2.18 7.87 7.87 7.87 7.87 ...
##  $ chas   : int  0 0 0 0 0 0 0 0 0 0 ...
##  $ nox    : num  0.538 0.469 0.469 0.458 0.458 0.458 0.524 0.524 0.524 0.524 ...
##  $ rm     : num  6.58 6.42 7.18 7 7.15 ...
##  $ age    : num  65.2 78.9 61.1 45.8 54.2 58.7 66.6 96.1 100 85.9 ...
##  $ dis    : num  4.09 4.97 4.97 6.06 6.06 ...
##  $ rad    : int  1 2 2 3 3 3 5 5 5 5 ...
##  $ tax    : num  296 242 242 222 222 222 311 311 311 311 ...
##  $ ptratio: num  15.3 17.8 17.8 18.7 18.7 18.7 15.2 15.2 15.2 15.2 ...
##  $ lstat  : num  4.98 9.14 4.03 2.94 5.33 ...
##  $ medv   : num  24 21.6 34.7 33.4 36.2 28.7 22.9 27.1 16.5 18.9 ...
  • (b).[2 pts] Make some pairwise scatterplots of the predictors (columns) in this data set. Describe your findings.
pairs(Boston)

  • (c).[2 pts] Are any of the predictors associated with per capita crime rate? If so, explain the relationship.
plot(crim ~ age, data = Boston, log = "xy")

#Closer to work area crime rate
plot(crim ~ dis, data = Boston, log = "xy")

#Higher index of accessibility to radial highways, more crime
plot(crim ~ rad, data = Boston, log = "xy")

#as box plots, since rad appears categorial
plot(crim ~ as.factor(rad),
    log = "y",
    data = Boston,
    xlab = "Accessibility to radial Highways",
    ylab = "log of crime")

#Tax is higher, crime is more
plot(crim ~ tax, data = Boston, log = "xy")

# Higher Pupil:teacher ratio, more crime
plot(crim ~ ptratio, log = "xy", data =  Boston)

#Correlations
cor(Boston)
##                crim          zn       indus         chas         nox
## crim     1.00000000 -0.20046922  0.40658341 -0.055891582  0.42097171
## zn      -0.20046922  1.00000000 -0.53382819 -0.042696719 -0.51660371
## indus    0.40658341 -0.53382819  1.00000000  0.062938027  0.76365145
## chas    -0.05589158 -0.04269672  0.06293803  1.000000000  0.09120281
## nox      0.42097171 -0.51660371  0.76365145  0.091202807  1.00000000
## rm      -0.21924670  0.31199059 -0.39167585  0.091251225 -0.30218819
## age      0.35273425 -0.56953734  0.64477851  0.086517774  0.73147010
## dis     -0.37967009  0.66440822 -0.70802699 -0.099175780 -0.76923011
## rad      0.62550515 -0.31194783  0.59512927 -0.007368241  0.61144056
## tax      0.58276431 -0.31456332  0.72076018 -0.035586518  0.66802320
## ptratio  0.28994558 -0.39167855  0.38324756 -0.121515174  0.18893268
## lstat    0.45562148 -0.41299457  0.60379972 -0.053929298  0.59087892
## medv    -0.38830461  0.36044534 -0.48372516  0.175260177 -0.42732077
##                  rm         age         dis          rad         tax    ptratio
## crim    -0.21924670  0.35273425 -0.37967009  0.625505145  0.58276431  0.2899456
## zn       0.31199059 -0.56953734  0.66440822 -0.311947826 -0.31456332 -0.3916785
## indus   -0.39167585  0.64477851 -0.70802699  0.595129275  0.72076018  0.3832476
## chas     0.09125123  0.08651777 -0.09917578 -0.007368241 -0.03558652 -0.1215152
## nox     -0.30218819  0.73147010 -0.76923011  0.611440563  0.66802320  0.1889327
## rm       1.00000000 -0.24026493  0.20524621 -0.209846668 -0.29204783 -0.3555015
## age     -0.24026493  1.00000000 -0.74788054  0.456022452  0.50645559  0.2615150
## dis      0.20524621 -0.74788054  1.00000000 -0.494587930 -0.53443158 -0.2324705
## rad     -0.20984667  0.45602245 -0.49458793  1.000000000  0.91022819  0.4647412
## tax     -0.29204783  0.50645559 -0.53443158  0.910228189  1.00000000  0.4608530
## ptratio -0.35550149  0.26151501 -0.23247054  0.464741179  0.46085304  1.0000000
## lstat   -0.61380827  0.60233853 -0.49699583  0.488676335  0.54399341  0.3740443
## medv     0.69535995 -0.37695457  0.24992873 -0.381626231 -0.46853593 -0.5077867
##              lstat       medv
## crim     0.4556215 -0.3883046
## zn      -0.4129946  0.3604453
## indus    0.6037997 -0.4837252
## chas    -0.0539293  0.1752602
## nox      0.5908789 -0.4273208
## rm      -0.6138083  0.6953599
## age      0.6023385 -0.3769546
## dis     -0.4969958  0.2499287
## rad      0.4886763 -0.3816262
## tax      0.5439934 -0.4685359
## ptratio  0.3740443 -0.5077867
## lstat    1.0000000 -0.7376627
## medv    -0.7376627  1.0000000
  • (d)[2 pts] Do any of the census tracts of Boston appear to have particularly high crime rates? Tax rates? Pupil-teacher ratios? Comment on the range of each predictor.
par(mfrow = c(1, 3))
hist(Boston$crim[Boston$crim > 1], breaks = 25)
hist(Boston$tax, breaks = 25)
hist(Boston$ptratio, breaks =  25)

  • (e)[1 pt] How many of the census tracts in this data set bound the Charles river?
sum(Boston$chas == 1)
## [1] 35
  • (f)[1 pt] What is the median pupil-teacher ratio among the towns in this data set?
median(Boston$ptratio)
## [1] 19.05
  • (g)[3 pts] Which census tract of Boston has lowest median value of owneroccupied homes? What are the values of the other predictors for that census tract, and how do those values compare to the overall ranges for those predictors? Comment on your findings.
t(subset(Boston, medv == min(medv)))
##              399      406
## crim     38.3518  67.9208
## zn        0.0000   0.0000
## indus    18.1000  18.1000
## chas      0.0000   0.0000
## nox       0.6930   0.6930
## rm        5.4530   5.6830
## age     100.0000 100.0000
## dis       1.4896   1.4254
## rad      24.0000  24.0000
## tax     666.0000 666.0000
## ptratio  20.2000  20.2000
## lstat    30.5900  22.9800
## medv      5.0000   5.0000
summary(Boston)
##       crim                zn             indus            chas        
##  Min.   : 0.00632   Min.   :  0.00   Min.   : 0.46   Min.   :0.00000  
##  1st Qu.: 0.08205   1st Qu.:  0.00   1st Qu.: 5.19   1st Qu.:0.00000  
##  Median : 0.25651   Median :  0.00   Median : 9.69   Median :0.00000  
##  Mean   : 3.61352   Mean   : 11.36   Mean   :11.14   Mean   :0.06917  
##  3rd Qu.: 3.67708   3rd Qu.: 12.50   3rd Qu.:18.10   3rd Qu.:0.00000  
##  Max.   :88.97620   Max.   :100.00   Max.   :27.74   Max.   :1.00000  
##       nox               rm             age              dis        
##  Min.   :0.3850   Min.   :3.561   Min.   :  2.90   Min.   : 1.130  
##  1st Qu.:0.4490   1st Qu.:5.886   1st Qu.: 45.02   1st Qu.: 2.100  
##  Median :0.5380   Median :6.208   Median : 77.50   Median : 3.207  
##  Mean   :0.5547   Mean   :6.285   Mean   : 68.57   Mean   : 3.795  
##  3rd Qu.:0.6240   3rd Qu.:6.623   3rd Qu.: 94.08   3rd Qu.: 5.188  
##  Max.   :0.8710   Max.   :8.780   Max.   :100.00   Max.   :12.127  
##       rad              tax           ptratio          lstat      
##  Min.   : 1.000   Min.   :187.0   Min.   :12.60   Min.   : 1.73  
##  1st Qu.: 4.000   1st Qu.:279.0   1st Qu.:17.40   1st Qu.: 6.95  
##  Median : 5.000   Median :330.0   Median :19.05   Median :11.36  
##  Mean   : 9.549   Mean   :408.2   Mean   :18.46   Mean   :12.65  
##  3rd Qu.:24.000   3rd Qu.:666.0   3rd Qu.:20.20   3rd Qu.:16.95  
##  Max.   :24.000   Max.   :711.0   Max.   :22.00   Max.   :37.97  
##       medv      
##  Min.   : 5.00  
##  1st Qu.:17.02  
##  Median :21.20  
##  Mean   :22.53  
##  3rd Qu.:25.00  
##  Max.   :50.00
  • (h)[3 pts] In this data set, how many of the census tracts average more than seven rooms per dwelling? More than eight rooms per dwelling? Comment on the census tracts that average more than eight rooms per dwelling.
sum(Boston$rm > 7)
## [1] 64
sum(Boston$rm > 8)
## [1] 13
summary(subset(Boston, rm > 8))
##       crim               zn            indus             chas       
##  Min.   :0.02009   Min.   : 0.00   Min.   : 2.680   Min.   :0.0000  
##  1st Qu.:0.33147   1st Qu.: 0.00   1st Qu.: 3.970   1st Qu.:0.0000  
##  Median :0.52014   Median : 0.00   Median : 6.200   Median :0.0000  
##  Mean   :0.71879   Mean   :13.62   Mean   : 7.078   Mean   :0.1538  
##  3rd Qu.:0.57834   3rd Qu.:20.00   3rd Qu.: 6.200   3rd Qu.:0.0000  
##  Max.   :3.47428   Max.   :95.00   Max.   :19.580   Max.   :1.0000  
##       nox               rm             age             dis       
##  Min.   :0.4161   Min.   :8.034   Min.   : 8.40   Min.   :1.801  
##  1st Qu.:0.5040   1st Qu.:8.247   1st Qu.:70.40   1st Qu.:2.288  
##  Median :0.5070   Median :8.297   Median :78.30   Median :2.894  
##  Mean   :0.5392   Mean   :8.349   Mean   :71.54   Mean   :3.430  
##  3rd Qu.:0.6050   3rd Qu.:8.398   3rd Qu.:86.50   3rd Qu.:3.652  
##  Max.   :0.7180   Max.   :8.780   Max.   :93.90   Max.   :8.907  
##       rad              tax           ptratio          lstat           medv     
##  Min.   : 2.000   Min.   :224.0   Min.   :13.00   Min.   :2.47   Min.   :21.9  
##  1st Qu.: 5.000   1st Qu.:264.0   1st Qu.:14.70   1st Qu.:3.32   1st Qu.:41.7  
##  Median : 7.000   Median :307.0   Median :17.40   Median :4.14   Median :48.3  
##  Mean   : 7.462   Mean   :325.1   Mean   :16.36   Mean   :4.31   Mean   :44.2  
##  3rd Qu.: 8.000   3rd Qu.:307.0   3rd Qu.:17.40   3rd Qu.:5.12   3rd Qu.:50.0  
##  Max.   :24.000   Max.   :666.0   Max.   :20.20   Max.   :7.44   Max.   :50.0
summary(Boston)
##       crim                zn             indus            chas        
##  Min.   : 0.00632   Min.   :  0.00   Min.   : 0.46   Min.   :0.00000  
##  1st Qu.: 0.08205   1st Qu.:  0.00   1st Qu.: 5.19   1st Qu.:0.00000  
##  Median : 0.25651   Median :  0.00   Median : 9.69   Median :0.00000  
##  Mean   : 3.61352   Mean   : 11.36   Mean   :11.14   Mean   :0.06917  
##  3rd Qu.: 3.67708   3rd Qu.: 12.50   3rd Qu.:18.10   3rd Qu.:0.00000  
##  Max.   :88.97620   Max.   :100.00   Max.   :27.74   Max.   :1.00000  
##       nox               rm             age              dis        
##  Min.   :0.3850   Min.   :3.561   Min.   :  2.90   Min.   : 1.130  
##  1st Qu.:0.4490   1st Qu.:5.886   1st Qu.: 45.02   1st Qu.: 2.100  
##  Median :0.5380   Median :6.208   Median : 77.50   Median : 3.207  
##  Mean   :0.5547   Mean   :6.285   Mean   : 68.57   Mean   : 3.795  
##  3rd Qu.:0.6240   3rd Qu.:6.623   3rd Qu.: 94.08   3rd Qu.: 5.188  
##  Max.   :0.8710   Max.   :8.780   Max.   :100.00   Max.   :12.127  
##       rad              tax           ptratio          lstat      
##  Min.   : 1.000   Min.   :187.0   Min.   :12.60   Min.   : 1.73  
##  1st Qu.: 4.000   1st Qu.:279.0   1st Qu.:17.40   1st Qu.: 6.95  
##  Median : 5.000   Median :330.0   Median :19.05   Median :11.36  
##  Mean   : 9.549   Mean   :408.2   Mean   :18.46   Mean   :12.65  
##  3rd Qu.:24.000   3rd Qu.:666.0   3rd Qu.:20.20   3rd Qu.:16.95  
##  Max.   :24.000   Max.   :711.0   Max.   :22.00   Max.   :37.97  
##       medv      
##  Min.   : 5.00  
##  1st Qu.:17.02  
##  Median :21.20  
##  Mean   :22.53  
##  3rd Qu.:25.00  
##  Max.   :50.00

Question 5. [6 pts]

Suppose we have a data set with five predictors, \(X1 = \text{GPA}, X2 =IQ, X3 = \text{Level (1 for College and 0 for High School)}, X4 =\text{Interaction between GPA and IQ, and }X5 = \text{Interaction between GPA and Level.}\) The response is starting salary after graduation (in thousands of dollars). Suppose we use least squares to fit the model, and get \(\hat{\beta}_0 = 50, \hat{\beta}_1 = 20, \hat{\beta}_2 = 0.07, \hat{\beta}_3 = 35, \hat{\beta}_4 = 0.01, \hat{\beta}_5 = −10\).

  • (a)[3 pts] Predict the salary of a college graduate with IQ of \(110\) and a GPA of \(4.0\).
#Given Coefficients
beta_0 <- 50
beta_1 <- 20
beta_2 <- 0.07
beta_3 <- 35
beta_4 <- 0.01
beta_5 <- -10

#Given Predictor Values
GPA <- 4.0
IQ <- 110
Level <- 1

# Compute Interaction terms
Interaction_GPA_IQ <- GPA *  IQ
Interaction_GPA_Level <- GPA * Level

# Compute Predicted Salary
predicted_salary <- beta_0 + beta_1 * GPA + beta_2 * IQ + beta_3 * Level + beta_4 * Interaction_GPA_IQ + beta_5 * Interaction_GPA_Level

#Print Predicted Salary
print(predicted_salary)
## [1] 137.1
  • (b)[3 pts] True or false: Since the coefficient for the GPA/IQ interaction term is very small, there is very little evidence of an interaction effect. Justify your answer. #Solution False. The size of the coefficient for the GPA/IQ interaction term alone cannot determine the presence or absence of an interaction effect. While a small coefficient might suggest a weaker interaction effect, it doesn’t necessarily imply the absence of interaction. 1.In linear regression, the significance of coefficients is assessed through hypothesis testing, typically using the associated p-values. To determine the significance of the interaction effect between GPA and IQ on starting salary, we need to check the p-value associated with the coefficient estimate for the GPA/IQ interaction term (\(\hat{\beta}_4\)).

2.If the p-value is sufficiently small (typically less than a chosen significance level, e.g., 0.05), then we can reject the null hypothesis that there is no interaction effect. In this case, we would have evidence supporting the presence of an interaction effect between GPA and IQ on the starting salary.

3.Therefore, whether there is evidence of an interaction effect cannot be determined solely by the size of the coefficient for the interaction term; the significance of this coefficient (through its associated p-value) is crucial in making such a determination.

Question 6. [34 pts]

This question involves the use of multiple linear regression on the Auto data set.

data(Auto)
data<-Auto
head(data)
##   mpg cylinders displacement horsepower weight acceleration year origin
## 1  18         8          307        130   3504         12.0   70      1
## 2  15         8          350        165   3693         11.5   70      1
## 3  18         8          318        150   3436         11.0   70      1
## 4  16         8          304        150   3433         12.0   70      1
## 5  17         8          302        140   3449         10.5   70      1
## 6  15         8          429        198   4341         10.0   70      1
##                        name
## 1 chevrolet chevelle malibu
## 2         buick skylark 320
## 3        plymouth satellite
## 4             amc rebel sst
## 5               ford torino
## 6          ford galaxie 500
  • (a).[3 pts] Produce a scatterplot matrix which includes all numeric variables in the data set. Please give the interpretation of the plot.
dataAuto <- read.csv("/Users/adityasrivatsav/Documents/EAS508/HW 1/Auto.csv",na.strings = "?")
dataAuto <- na.omit(dataAuto)
dim(dataAuto)
## [1] 392   9
#summary of the data Auto
summary(dataAuto)
##       mpg          cylinders      displacement     horsepower        weight    
##  Min.   : 9.00   Min.   :3.000   Min.   : 68.0   Min.   : 46.0   Min.   :1613  
##  1st Qu.:17.00   1st Qu.:4.000   1st Qu.:105.0   1st Qu.: 75.0   1st Qu.:2225  
##  Median :22.75   Median :4.000   Median :151.0   Median : 93.5   Median :2804  
##  Mean   :23.45   Mean   :5.472   Mean   :194.4   Mean   :104.5   Mean   :2978  
##  3rd Qu.:29.00   3rd Qu.:8.000   3rd Qu.:275.8   3rd Qu.:126.0   3rd Qu.:3615  
##  Max.   :46.60   Max.   :8.000   Max.   :455.0   Max.   :230.0   Max.   :5140  
##   acceleration        year           origin          name          
##  Min.   : 8.00   Min.   :70.00   Min.   :1.000   Length:392        
##  1st Qu.:13.78   1st Qu.:73.00   1st Qu.:1.000   Class :character  
##  Median :15.50   Median :76.00   Median :1.000   Mode  :character  
##  Mean   :15.54   Mean   :75.98   Mean   :1.577                     
##  3rd Qu.:17.02   3rd Qu.:79.00   3rd Qu.:2.000                     
##  Max.   :24.80   Max.   :82.00   Max.   :3.000
pairs(dataAuto[, sapply(dataAuto, is.numeric)])

- (b) [3 pts] Compute the matrix of correlations between the variables. You will need to exclude the name variable, which is qualitative. Explain your discoveries, find the top 1 predictors.

# Correlation Matrix
correlation_matrix <- cor(dataAuto[, sapply(dataAuto, is.numeric)])
# Find the top predictor
top_predictor <- colnames(correlation_matrix)[which.max(correlation_matrix["mpg", ])]

# Print correlation matrix
print(correlation_matrix)
##                     mpg  cylinders displacement horsepower     weight
## mpg           1.0000000 -0.7776175   -0.8051269 -0.7784268 -0.8322442
## cylinders    -0.7776175  1.0000000    0.9508233  0.8429834  0.8975273
## displacement -0.8051269  0.9508233    1.0000000  0.8972570  0.9329944
## horsepower   -0.7784268  0.8429834    0.8972570  1.0000000  0.8645377
## weight       -0.8322442  0.8975273    0.9329944  0.8645377  1.0000000
## acceleration  0.4233285 -0.5046834   -0.5438005 -0.6891955 -0.4168392
## year          0.5805410 -0.3456474   -0.3698552 -0.4163615 -0.3091199
## origin        0.5652088 -0.5689316   -0.6145351 -0.4551715 -0.5850054
##              acceleration       year     origin
## mpg             0.4233285  0.5805410  0.5652088
## cylinders      -0.5046834 -0.3456474 -0.5689316
## displacement   -0.5438005 -0.3698552 -0.6145351
## horsepower     -0.6891955 -0.4163615 -0.4551715
## weight         -0.4168392 -0.3091199 -0.5850054
## acceleration    1.0000000  0.2903161  0.2127458
## year            0.2903161  1.0000000  0.1815277
## origin          0.2127458  0.1815277  1.0000000
# Print top predictor
print(paste("Top Predictor:", top_predictor))
## [1] "Top Predictor: mpg"
  • (c)[6 pts] perform a simple linear regression use MPG as response and the top predictor. Produce diagnostic plots of the linear regression fit (similar as the ones we showed on class to check the assumptions of linear regression: linearity, normality, constant variance). Interpret your discoveries.
dataAuto <- read.csv("/Users/adityasrivatsav/Documents/EAS508/HW 1/Auto.csv",na.strings = "?")
dataAuto <- na.omit(dataAuto)
# Calculate correlations between "MPG" and other variables
correlations <- cor(dataAuto[, -9], dataAuto$mpg)

# Find the top predictor with the highest absolute correlation
top_predictor <- names(which.max(abs(correlations)))

# Fit linear regression model
lm_model <- lm(mpg ~ ., data = dataAuto)

# Generate diagnostic plots
par(mfrow = c(2, 2))
plot(lm_model)
## Warning: not plotting observations with leverage one:
##   2, 3, 4, 5, 10, 11, 13, 15, 20, 22, 23, 24, 26, 27, 28, 29, 31, 34, 36, 39, 42, 44, 45, 46, 47, 48, 49, 51, 52, 54, 55, 56, 57, 58, 59, 61, 66, 67, 68, 70, 71, 73, 75, 76, 77, 79, 80, 81, 82, 83, 84, 85, 89, 90, 93, 94, 95, 96, 98, 102, 104, 105, 108, 110, 111, 113, 114, 115, 116, 121, 124, 128, 136, 137, 140, 147, 150, 151, 153, 156, 157, 160, 163, 164, 165, 169, 175, 178, 181, 183, 185, 187, 195, 198, 199, 200, 201, 203, 206, 207, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 221, 222, 223, 224, 226, 227, 228, 230, 231, 232, 233, 234, 235, 237, 240, 241, 242, 243, 244, 245, 246, 249, 250, 251, 253, 254, 255, 257, 258, 260, 262, 263, 264, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 285, 286, 287, 290, 291, 292, 293, 294, 295, 296, 297, 300, 301, 303, 304, 306, 309, 311, 313, 316, 317, 319, 321, 324, 325, 326, 327, 328, 330, 331, 332, 333, 337, 340, 341, 342, 344, 345, 346, 347, 348, 349, 350, 351, 353, 355, 356, 357, 358, 360, 361, 362, 363, 364, 365, 366, 367, 369, 370, 371, 372, 373, 374, 375, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392
## Warning in sqrt(crit * p * (1 - hh)/hh): NaNs produced

## Warning in sqrt(crit * p * (1 - hh)/hh): NaNs produced

  • (d)[4 pts] Use the lm() function to perform a multiple linear regression with mpg as the response and all other variables except name as the predictors. Use the summary() function to print the results. Comment on the output. For instance:

      1. Is there a relationship between the predictors and the response?
      1. Which predictors appear to have a statistically significant relationship to the response?
      1. What does the coefficient for the year variable suggest?
# Perform multiple linear Regression
lm_model <- lm(mpg ~ . - name, data = dataAuto)
# Print summary of the regression results
summary(lm_model)
## 
## Call:
## lm(formula = mpg ~ . - name, data = dataAuto)
## 
## Residuals:
##     Min      1Q  Median      3Q     Max 
## -9.5903 -2.1565 -0.1169  1.8690 13.0604 
## 
## Coefficients:
##                Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  -17.218435   4.644294  -3.707  0.00024 ***
## cylinders     -0.493376   0.323282  -1.526  0.12780    
## displacement   0.019896   0.007515   2.647  0.00844 ** 
## horsepower    -0.016951   0.013787  -1.230  0.21963    
## weight        -0.006474   0.000652  -9.929  < 2e-16 ***
## acceleration   0.080576   0.098845   0.815  0.41548    
## year           0.750773   0.050973  14.729  < 2e-16 ***
## origin         1.426141   0.278136   5.127 4.67e-07 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 3.328 on 384 degrees of freedom
## Multiple R-squared:  0.8215, Adjusted R-squared:  0.8182 
## F-statistic: 252.4 on 7 and 384 DF,  p-value: < 2.2e-16
  • (e)[5 pts] Produce diagnostic plots of the linear regression fit. Comment on any problems you see with the fit. Do the residual plots suggest any unusually large outliers? Does the leverage plot identify any observations with unusually high leverage?
# Produce diagnostic plots
par(mfrow = c(2,2))
plot(lm_model)

    1. [5 pts] Fit a multiple linear regression model called model_tops using MPG as the response and the top 3 predicting variables with the strongest relationship with MPG. Compare the coefficients of the 3 predictor in model_tops with the model that used all numeric predictors, which ones are larger? Why?
# Extract coefficients from the previous model
coefficients_all <- coef(lm_model)

# Find the top 3 predictors with the strongest relationship with MPG
top_3_predictors <- names(sort(abs(coefficients_all[-1]), decreasing = TRUE)[1:3])

# Create a new model using only the top 3 predictors
model_tops <- lm(mpg ~ ., data = dataAuto[, c("mpg", top_3_predictors)])

# Compare coefficients
coefficients_model_tops <- coef(model_tops)
coefficients_all
##   (Intercept)     cylinders  displacement    horsepower        weight 
## -17.218434622  -0.493376319   0.019895644  -0.016951144  -0.006474043 
##  acceleration          year        origin 
##   0.080575838   0.750772678   1.426140495
coefficients_model_tops
## (Intercept)      origin        year   cylinders 
## -23.2944368   1.8367029   0.7570703  -2.4995084
  • (g)[3 pts] Use the * and : symbols to fit linear regression models with interaction effects. Do any interactions appear to be statistically significant?
# Fit Linear Regression model with interaction effects
model_interaction <- lm(mpg ~ .* ., data = dataAuto)

# Check for significiant interactions
summary(model_interaction)
## 
## Call:
## lm(formula = mpg ~ . * ., data = dataAuto)
## 
## Residuals:
## ALL 392 residuals are 0: no residual degrees of freedom!
## 
## Coefficients: (2037 not defined because of singularities)
##                                                         Estimate Std. Error
## (Intercept)                                           -3.383e+03        NaN
## cylinders                                             -1.631e+03        NaN
## displacement                                          -4.019e+01        NaN
## horsepower                                             6.561e+00        NaN
## weight                                                -8.695e-01        NaN
## acceleration                                          -7.249e+00        NaN
## year                                                  -2.886e+00        NaN
## origin                                                 5.432e+03        NaN
## nameamc ambassador dpl                                -1.169e+03        NaN
## nameamc ambassador sst                                 1.955e+03        NaN
## nameamc concord                                        5.608e+03        NaN
## nameamc concord d/l                                    5.109e+03        NaN
## nameamc concord dl 6                                   5.896e+03        NaN
## nameamc gremlin                                        7.658e+03        NaN
## nameamc hornet                                         8.524e+03        NaN
## nameamc hornet sportabout (sw)                         5.247e+03        NaN
## nameamc matador                                        1.511e+04        NaN
## nameamc matador (sw)                                   2.211e+03        NaN
## nameamc pacer                                          5.889e+03        NaN
## nameamc pacer d/l                                      5.703e+03        NaN
## nameamc rebel sst                                      1.954e+03        NaN
## nameamc spirit dl                                      5.554e+03        NaN
## nameaudi 100 ls                                       -7.027e+01        NaN
## nameaudi 100ls                                         5.207e+03        NaN
## nameaudi 4000                                         -2.254e+01        NaN
## nameaudi 5000                                          2.854e+02        NaN
## nameaudi 5000s (diesel)                                6.224e+02        NaN
## nameaudi fox                                          -4.509e+01        NaN
## namebmw 2002                                          -1.445e+02        NaN
## namebmw 320i                                          -1.937e+02        NaN
## namebuick century                                      4.711e+03        NaN
## namebuick century 350                                  2.370e+02        NaN
## namebuick century limited                              5.674e+03        NaN
## namebuick century luxus (sw)                           1.202e+03        NaN
## namebuick century special                              5.557e+03        NaN
## namebuick electra 225 custom                          -3.706e+03        NaN
## namebuick estate wagon (sw)                            1.930e+04        NaN
## namebuick lesabre custom                               9.829e+02        NaN
## namebuick opel isuzu deluxe                            5.494e+03        NaN
## namebuick regal sport coupe (turbo)                    4.169e+03        NaN
## namebuick skyhawk                                      5.408e+03        NaN
## namebuick skylark                                      6.425e+03        NaN
## namebuick skylark 320                                  5.018e+02        NaN
## namebuick skylark limited                              5.760e+03        NaN
## namecadillac eldorado                                  1.791e+03        NaN
## namecadillac seville                                   1.084e+02        NaN
## namecapri ii                                           5.602e+03        NaN
## namechevroelt chevelle malibu                          5.682e+03        NaN
## namechevrolet bel air                                  1.305e+03        NaN
## namechevrolet camaro                                   5.770e+03        NaN
## namechevrolet caprice classic                          1.101e+04        NaN
## namechevrolet cavalier                                 5.338e+03        NaN
## namechevrolet cavalier 2-door                          5.378e+03        NaN
## namechevrolet cavalier wagon                           5.330e+03        NaN
## namechevrolet chevelle concours (sw)                   2.445e+03        NaN
## namechevrolet chevelle malibu                          1.546e+04        NaN
## namechevrolet chevelle malibu classic                  1.659e+04        NaN
## namechevrolet chevette                                 5.532e+03        NaN
## namechevrolet citation                                 5.798e+03        NaN
## namechevrolet concours                                 5.421e+03        NaN
## namechevrolet impala                                   1.354e+04        NaN
## namechevrolet malibu                                   1.986e+04        NaN
## namechevrolet malibu classic (sw)                      3.306e+03        NaN
## namechevrolet monte carlo                             -9.065e+01        NaN
## namechevrolet monte carlo landau                       1.316e+04        NaN
## namechevrolet monte carlo s                            1.208e+03        NaN
## namechevrolet monza 2+2                                3.748e+03        NaN
## namechevrolet nova                                     7.334e+03        NaN
## namechevrolet nova custom                              5.634e+03        NaN
## namechevrolet vega                                     6.945e+03        NaN
## namechevrolet vega (sw)                                5.933e+03        NaN
## namechevrolet vega 2300                                5.629e+03        NaN
## namechevrolet woody                                    5.615e+03        NaN
## namechevy c10                                          1.195e+03        NaN
## namechevy c20                                          3.243e+02        NaN
## namechevy s-10                                         5.503e+03        NaN
## namechrysler cordoba                                  -1.303e+03        NaN
## namechrysler lebaron medallion                         5.766e+03        NaN
## namechrysler lebaron salon                             6.033e+03        NaN
## namechrysler lebaron town @ country (sw)               8.099e+02        NaN
## namechrysler new yorker brougham                      -3.026e+03        NaN
## namechrysler newport royal                            -1.285e+03        NaN
## namedatsun 1200                                       -5.346e+03        NaN
## namedatsun 200-sx                                     -5.467e+03        NaN
## namedatsun 200sx                                      -5.499e+03        NaN
## namedatsun 210                                        -5.355e+03        NaN
## namedatsun 210 mpg                                    -5.406e+03        NaN
## namedatsun 280-zx                                     -5.360e+03        NaN
## namedatsun 310                                        -5.425e+03        NaN
## namedatsun 310 gx                                     -5.415e+03        NaN
## namedatsun 510                                        -5.453e+03        NaN
## namedatsun 510 (sw)                                   -5.448e+03        NaN
## namedatsun 510 hatchback                              -5.443e+03        NaN
## namedatsun 610                                        -5.465e+03        NaN
## namedatsun 710                                        -5.252e+03        NaN
## namedatsun 810                                        -4.920e+03        NaN
## namedatsun 810 maxima                                 -5.012e+03        NaN
## namedatsun b-210                                      -5.410e+03        NaN
## namedatsun b210                                       -5.404e+03        NaN
## namedatsun b210 gx                                    -5.409e+03        NaN
## namedatsun f-10 hatchback                             -5.404e+03        NaN
## namedatsun pl510                                      -5.417e+03        NaN
## namedodge aries se                                     5.662e+03        NaN
## namedodge aries wagon (sw)                             5.771e+03        NaN
## namedodge aspen                                        7.946e+03        NaN
## namedodge aspen 6                                      5.453e+03        NaN
## namedodge aspen se                                     5.744e+03        NaN
## namedodge challenger se                               -4.584e+02        NaN
## namedodge charger 2.2                                  5.667e+03        NaN
## namedodge colt                                         5.585e+03        NaN
## namedodge colt (sw)                                    5.376e+03        NaN
## namedodge colt hardtop                                 5.376e+03        NaN
## namedodge colt hatchback custom                        5.428e+03        NaN
## namedodge colt m/m                                     5.366e+03        NaN
## namedodge coronet brougham                             1.661e+03        NaN
## namedodge coronet custom                               1.647e+03        NaN
## namedodge coronet custom (sw)                          1.677e+03        NaN
## namedodge d100                                         1.638e+03        NaN
## namedodge d200                                        -2.089e+02        NaN
## namedodge dart custom                                  1.638e+03        NaN
## namedodge diplomat                                     1.915e+03        NaN
## namedodge magnum xe                                    1.942e+03        NaN
## namedodge monaco (sw)                                 -3.828e+02        NaN
## namedodge monaco brougham                              1.801e+03        NaN
## namedodge omni                                         5.478e+03        NaN
## namedodge rampage                                      5.664e+03        NaN
## namedodge st. regis                                    2.058e+03        NaN
## namefiat 124 sport coupe                              -9.486e+01        NaN
## namefiat 124 tc                                        9.500e+01        NaN
## namefiat 124b                                         -3.710e+01        NaN
## namefiat 128                                           2.700e+01        NaN
## namefiat 131                                          -5.233e+01        NaN
## namefiat strada custom                                -1.021e+01        NaN
## namefiat x1.9                                         -4.174e+01        NaN
## nameford country                                      -1.510e+02        NaN
## nameford country squire (sw)                           1.277e+04        NaN
## nameford escort 2h                                     5.519e+03        NaN
## nameford escort 4w                                     5.530e+03        NaN
## nameford f108                                          2.502e+03        NaN
## nameford f250                                         -1.385e+03        NaN
## nameford fairmont                                      5.669e+03        NaN
## nameford fairmont (auto)                               6.013e+03        NaN
## nameford fairmont (man)                                5.666e+03        NaN
## nameford fairmont 4                                    5.668e+03        NaN
## nameford fairmont futura                               5.581e+03        NaN
## nameford fiesta                                        5.546e+03        NaN
## nameford futura                                        2.282e+03        NaN
## nameford galaxie 500                                   1.442e+04        NaN
## nameford gran torino                                   1.182e+04        NaN
## nameford gran torino (sw)                              2.257e+03        NaN
## nameford granada                                       5.760e+03        NaN
## nameford granada ghia                                  6.366e+03        NaN
## nameford granada gl                                    5.962e+03        NaN
## nameford granada l                                     5.344e+03        NaN
## nameford ltd                                           7.389e+03        NaN
## nameford ltd landau                                    2.515e+03        NaN
## nameford maverick                                      8.853e+03        NaN
## nameford mustang                                       5.868e+03        NaN
## nameford mustang gl                                    5.688e+03        NaN
## nameford mustang ii                                    2.479e+03        NaN
## nameford mustang ii 2+2                                5.654e+03        NaN
## nameford pinto                                         5.331e+03        NaN
## nameford pinto (sw)                                    5.510e+03        NaN
## nameford pinto runabout                                5.514e+03        NaN
## nameford ranger                                        5.562e+03        NaN
## nameford thunderbird                                   1.115e+03        NaN
## nameford torino                                        2.243e+03        NaN
## nameford torino 500                                    5.944e+03        NaN
## namehi 1200d                                           4.598e+02        NaN
## namehonda accord                                      -5.172e+03        NaN
## namehonda accord cvcc                                 -5.400e+03        NaN
## namehonda accord lx                                   -5.416e+03        NaN
## namehonda civic                                       -5.238e+03        NaN
## namehonda civic (auto)                                -5.420e+03        NaN
## namehonda civic 1300                                  -5.416e+03        NaN
## namehonda civic 1500 gl                               -5.401e+03        NaN
## namehonda civic cvcc                                  -5.495e+03        NaN
## namehonda prelude                                     -5.418e+03        NaN
## namemaxda glc deluxe                                  -5.428e+03        NaN
## namemaxda rx3                                         -6.408e+03        NaN
## namemazda 626                                         -4.617e+03        NaN
## namemazda glc                                         -5.417e+03        NaN
## namemazda glc 4                                       -5.416e+03        NaN
## namemazda glc custom                                  -5.411e+03        NaN
## namemazda glc custom l                                -5.409e+03        NaN
## namemazda glc deluxe                                  -5.438e+03        NaN
## namemazda rx-4                                        -6.486e+03        NaN
## namemazda rx-7 gs                                     -6.476e+03        NaN
## namemazda rx2 coupe                                   -6.447e+03        NaN
## namemercedes benz 300d                                 7.778e+02        NaN
## namemercedes-benz 240d                                 6.462e+02        NaN
## namemercedes-benz 280s                                -1.625e+02        NaN
## namemercury capri 2000                                 5.518e+03        NaN
## namemercury capri v6                                   6.032e+03        NaN
## namemercury cougar brougham                            2.526e+03        NaN
## namemercury grand marquis                              1.365e+03        NaN
## namemercury lynx l                                     5.479e+03        NaN
## namemercury marquis                                   -2.533e+03        NaN
## namemercury marquis brougham                          -1.960e+03        NaN
## namemercury monarch                                    6.469e+03        NaN
## namemercury monarch ghia                               2.271e+03        NaN
## namemercury zephyr                                     6.027e+03        NaN
## namemercury zephyr 6                                   6.031e+03        NaN
## namenissan stanza xe                                  -5.414e+03        NaN
## nameoldsmobile cutlass ciera (diesel)                  5.866e+03        NaN
## nameoldsmobile cutlass ls                              2.355e+03        NaN
## nameoldsmobile cutlass salon brougham                  6.449e+03        NaN
## nameoldsmobile cutlass supreme                         3.762e+03        NaN
## nameoldsmobile delta 88 royale                         7.959e+02        NaN
## nameoldsmobile omega                                   7.088e+01        NaN
## nameoldsmobile omega brougham                          5.735e+03        NaN
## nameoldsmobile starfire sx                             5.876e+03        NaN
## nameoldsmobile vista cruiser                           1.099e+02        NaN
## nameopel 1900                                          5.222e+02        NaN
## nameopel manta                                        -7.449e+02        NaN
## namepeugeot 304                                       -4.408e+01        NaN
## namepeugeot 504                                        1.484e+03        NaN
## namepeugeot 504 (sw)                                   2.766e+01        NaN
## namepeugeot 505s turbo diesel                          3.276e+02        NaN
## namepeugeot 604sl                                     -1.609e+02        NaN
## nameplymouth 'cuda 340                                 8.976e+02        NaN
## nameplymouth arrow gs                                  5.384e+03        NaN
## nameplymouth champ                                     5.455e+03        NaN
## nameplymouth cricket                                   5.450e+03        NaN
## nameplymouth custom suburb                             3.020e+02        NaN
## nameplymouth duster                                    5.857e+03        NaN
## nameplymouth fury                                      5.914e+03        NaN
## nameplymouth fury gran sedan                           1.666e+03        NaN
## nameplymouth fury iii                                  1.425e+04        NaN
## nameplymouth grand fury                                1.675e+03        NaN
## nameplymouth horizon                                   5.526e+03        NaN
## nameplymouth horizon 4                                 5.599e+03        NaN
## nameplymouth horizon miser                             5.605e+03        NaN
## nameplymouth horizon tc3                               5.540e+03        NaN
## nameplymouth reliant                                   5.662e+03        NaN
## nameplymouth sapporo                                   5.539e+03        NaN
## nameplymouth satellite                                 1.634e+03        NaN
## nameplymouth satellite custom                          5.601e+03        NaN
## nameplymouth satellite custom (sw)                     1.659e+03        NaN
## nameplymouth satellite sebring                         5.616e+03        NaN
## nameplymouth valiant                                   8.013e+03        NaN
## nameplymouth valiant custom                            5.793e+03        NaN
## nameplymouth volare                                    5.699e+03        NaN
## nameplymouth volare custom                             5.734e+03        NaN
## nameplymouth volare premier v8                         1.648e+03        NaN
## namepontiac astro                                      5.846e+03        NaN
## namepontiac catalina                                   1.061e+04        NaN
## namepontiac catalina brougham                         -6.652e+02        NaN
## namepontiac firebird                                   5.630e+03        NaN
## namepontiac grand prix                                -2.772e+03        NaN
## namepontiac grand prix lj                             -9.457e+02        NaN
## namepontiac j2000 se hatchback                         5.382e+03        NaN
## namepontiac lemans v6                                  5.312e+03        NaN
## namepontiac phoenix                                    5.756e+03        NaN
## namepontiac phoenix lj                                 5.592e+03        NaN
## namepontiac safari (sw)                               -3.725e+02        NaN
## namepontiac sunbird coupe                              5.806e+03        NaN
## namepontiac ventura sj                                 5.456e+03        NaN
## namerenault 12 (sw)                                    3.431e+01        NaN
## namerenault 12tl                                      -3.225e+01        NaN
## namerenault 5 gtl                                      2.011e+01        NaN
## namesaab 99e                                          -1.220e+02        NaN
## namesaab 99gle                                        -3.066e+02        NaN
## namesaab 99le                                          8.744e+02        NaN
## namesubaru                                            -4.987e+03        NaN
## namesubaru dl                                         -5.410e+03        NaN
## nametoyota carina                                     -5.450e+03        NaN
## nametoyota celica gt                                  -5.426e+03        NaN
## nametoyota celica gt liftback                         -5.449e+03        NaN
## nametoyota corolla                                    -5.263e+03        NaN
## nametoyota corolla 1200                               -5.385e+03        NaN
## nametoyota corolla 1600 (sw)                          -5.416e+03        NaN
## nametoyota corolla liftback                           -5.426e+03        NaN
## nametoyota corolla tercel                             -5.408e+03        NaN
## nametoyota corona                                     -5.441e+03        NaN
## nametoyota corona hardtop                             -5.451e+03        NaN
## nametoyota corona liftback                            -5.412e+03        NaN
## nametoyota corona mark ii                             -5.456e+03        NaN
## nametoyota cressida                                   -5.316e+03        NaN
## nametoyota mark ii                                    -5.125e+03        NaN
## nametoyota starlet                                    -5.416e+03        NaN
## nametoyota tercel                                     -5.424e+03        NaN
## nametoyouta corona mark ii (sw)                       -5.467e+03        NaN
## nametriumph tr7 coupe                                  2.168e+01        NaN
## namevokswagen rabbit                                   3.010e+01        NaN
## namevolkswagen 1131 deluxe sedan                       1.782e+02        NaN
## namevolkswagen 411 (sw)                                1.478e+02        NaN
## namevolkswagen dasher                                 -1.154e+02        NaN
## namevolkswagen jetta                                   3.406e+01        NaN
## namevolkswagen model 111                               9.888e+01        NaN
## namevolkswagen rabbit                                 -4.651e+02        NaN
## namevolkswagen rabbit custom                           1.179e+01        NaN
## namevolkswagen rabbit custom diesel                    1.428e+02        NaN
## namevolkswagen rabbit l                                6.214e+01        NaN
## namevolkswagen scirocco                               -8.264e+00        NaN
## namevolkswagen super beetle                            1.908e+02        NaN
## namevolkswagen type 3                                  1.925e+02        NaN
## namevolvo 144ea                                       -2.776e+02        NaN
## namevolvo 145e (sw)                                   -2.816e+02        NaN
## namevolvo 244dl                                       -1.247e+02        NaN
## namevolvo 245                                         -1.239e+02        NaN
## namevolvo 264gl                                        5.503e+01        NaN
## namevolvo diesel                                       6.999e+02        NaN
## namevw dasher (diesel)                                 1.685e+02        NaN
## namevw pickup                                          1.957e+02        NaN
## namevw rabbit                                          3.377e+00        NaN
## namevw rabbit c (diesel)                               1.411e+02        NaN
## namevw rabbit custom                                          NA         NA
## cylinders:displacement                                 8.533e+00        NaN
## cylinders:horsepower                                  -3.296e+00        NaN
## cylinders:weight                                       1.907e-01        NaN
## cylinders:acceleration                                -2.330e+00        NaN
## cylinders:year                                        -5.977e-01        NaN
## cylinders:origin                                              NA         NA
## cylinders:nameamc ambassador dpl                              NA         NA
## cylinders:nameamc ambassador sst                              NA         NA
## cylinders:nameamc concord                              4.513e+01        NaN
## cylinders:nameamc concord d/l                                 NA         NA
## cylinders:nameamc concord dl 6                                NA         NA
## cylinders:nameamc gremlin                                     NA         NA
## cylinders:nameamc hornet                                      NA         NA
## cylinders:nameamc hornet sportabout (sw)                      NA         NA
## cylinders:nameamc matador                             -1.210e+03        NaN
## cylinders:nameamc matador (sw)                                NA         NA
## cylinders:nameamc pacer                                       NA         NA
## cylinders:nameamc pacer d/l                                   NA         NA
## cylinders:nameamc rebel sst                                   NA         NA
## cylinders:nameamc spirit dl                                   NA         NA
## cylinders:nameaudi 100 ls                                     NA         NA
## cylinders:nameaudi 100ls                                      NA         NA
## cylinders:nameaudi 4000                                       NA         NA
## cylinders:nameaudi 5000                                       NA         NA
## cylinders:nameaudi 5000s (diesel)                             NA         NA
## cylinders:nameaudi fox                                        NA         NA
## cylinders:namebmw 2002                                        NA         NA
## cylinders:namebmw 320i                                        NA         NA
## cylinders:namebuick century                                   NA         NA
## cylinders:namebuick century 350                               NA         NA
## cylinders:namebuick century limited                           NA         NA
## cylinders:namebuick century luxus (sw)                        NA         NA
## cylinders:namebuick century special                           NA         NA
## cylinders:namebuick electra 225 custom                        NA         NA
## cylinders:namebuick estate wagon (sw)                         NA         NA
## cylinders:namebuick lesabre custom                            NA         NA
## cylinders:namebuick opel isuzu deluxe                         NA         NA
## cylinders:namebuick regal sport coupe (turbo)                 NA         NA
## cylinders:namebuick skyhawk                                   NA         NA
## cylinders:namebuick skylark                           -1.423e+02        NaN
## cylinders:namebuick skylark 320                               NA         NA
## cylinders:namebuick skylark limited                           NA         NA
## cylinders:namecadillac eldorado                               NA         NA
## cylinders:namecadillac seville                                NA         NA
## cylinders:namecapri ii                                        NA         NA
## cylinders:namechevroelt chevelle malibu                       NA         NA
## cylinders:namechevrolet bel air                               NA         NA
## cylinders:namechevrolet camaro                                NA         NA
## cylinders:namechevrolet caprice classic                       NA         NA
## cylinders:namechevrolet cavalier                              NA         NA
## cylinders:namechevrolet cavalier 2-door                       NA         NA
## cylinders:namechevrolet cavalier wagon                        NA         NA
## cylinders:namechevrolet chevelle concours (sw)                NA         NA
## cylinders:namechevrolet chevelle malibu               -1.635e+03        NaN
## cylinders:namechevrolet chevelle malibu classic       -1.801e+03        NaN
## cylinders:namechevrolet chevette                              NA         NA
## cylinders:namechevrolet citation                       3.483e+01        NaN
## cylinders:namechevrolet concours                              NA         NA
## cylinders:namechevrolet impala                                NA         NA
## cylinders:namechevrolet malibu                        -2.335e+03        NaN
## cylinders:namechevrolet malibu classic (sw)                   NA         NA
## cylinders:namechevrolet monte carlo                           NA         NA
## cylinders:namechevrolet monte carlo landau                    NA         NA
## cylinders:namechevrolet monte carlo s                         NA         NA
## cylinders:namechevrolet monza 2+2                             NA         NA
## cylinders:namechevrolet nova                                  NA         NA
## cylinders:namechevrolet nova custom                           NA         NA
## cylinders:namechevrolet vega                                  NA         NA
## cylinders:namechevrolet vega (sw)                             NA         NA
## cylinders:namechevrolet vega 2300                             NA         NA
## cylinders:namechevrolet woody                                 NA         NA
## cylinders:namechevy c10                                       NA         NA
## cylinders:namechevy c20                                       NA         NA
## cylinders:namechevy s-10                                      NA         NA
## cylinders:namechrysler cordoba                                NA         NA
## cylinders:namechrysler lebaron medallion                      NA         NA
## cylinders:namechrysler lebaron salon                          NA         NA
## cylinders:namechrysler lebaron town @ country (sw)            NA         NA
## cylinders:namechrysler new yorker brougham                    NA         NA
## cylinders:namechrysler newport royal                          NA         NA
## cylinders:namedatsun 1200                                     NA         NA
## cylinders:namedatsun 200-sx                                   NA         NA
## cylinders:namedatsun 200sx                                    NA         NA
## cylinders:namedatsun 210                                      NA         NA
## cylinders:namedatsun 210 mpg                                  NA         NA
## cylinders:namedatsun 280-zx                                   NA         NA
## cylinders:namedatsun 310                                      NA         NA
## cylinders:namedatsun 310 gx                                   NA         NA
## cylinders:namedatsun 510                                      NA         NA
## cylinders:namedatsun 510 (sw)                                 NA         NA
## cylinders:namedatsun 510 hatchback                            NA         NA
## cylinders:namedatsun 610                                      NA         NA
## cylinders:namedatsun 710                                      NA         NA
## cylinders:namedatsun 810                                      NA         NA
## cylinders:namedatsun 810 maxima                               NA         NA
## cylinders:namedatsun b-210                                    NA         NA
## cylinders:namedatsun b210                                     NA         NA
## cylinders:namedatsun b210 gx                                  NA         NA
## cylinders:namedatsun f-10 hatchback                           NA         NA
## cylinders:namedatsun pl510                                    NA         NA
## cylinders:namedodge aries se                                  NA         NA
## cylinders:namedodge aries wagon (sw)                          NA         NA
## cylinders:namedodge aspen                                     NA         NA
## cylinders:namedodge aspen 6                                   NA         NA
## cylinders:namedodge aspen se                                  NA         NA
## cylinders:namedodge challenger se                             NA         NA
## cylinders:namedodge charger 2.2                               NA         NA
## cylinders:namedodge colt                                      NA         NA
## cylinders:namedodge colt (sw)                                 NA         NA
## cylinders:namedodge colt hardtop                              NA         NA
## cylinders:namedodge colt hatchback custom                     NA         NA
## cylinders:namedodge colt m/m                                  NA         NA
## cylinders:namedodge coronet brougham                          NA         NA
## cylinders:namedodge coronet custom                            NA         NA
## cylinders:namedodge coronet custom (sw)                       NA         NA
## cylinders:namedodge d100                                      NA         NA
## cylinders:namedodge d200                                      NA         NA
## cylinders:namedodge dart custom                               NA         NA
## cylinders:namedodge diplomat                                  NA         NA
## cylinders:namedodge magnum xe                                 NA         NA
## cylinders:namedodge monaco (sw)                               NA         NA
## cylinders:namedodge monaco brougham                           NA         NA
## cylinders:namedodge omni                                      NA         NA
## cylinders:namedodge rampage                                   NA         NA
## cylinders:namedodge st. regis                                 NA         NA
## cylinders:namefiat 124 sport coupe                            NA         NA
## cylinders:namefiat 124 tc                                     NA         NA
## cylinders:namefiat 124b                                       NA         NA
## cylinders:namefiat 128                                        NA         NA
## cylinders:namefiat 131                                        NA         NA
## cylinders:namefiat strada custom                              NA         NA
## cylinders:namefiat x1.9                                       NA         NA
## cylinders:nameford country                                    NA         NA
## cylinders:nameford country squire (sw)                        NA         NA
## cylinders:nameford escort 2h                                  NA         NA
## cylinders:nameford escort 4w                                  NA         NA
## cylinders:nameford f108                                       NA         NA
## cylinders:nameford f250                                       NA         NA
## cylinders:nameford fairmont                                   NA         NA
## cylinders:nameford fairmont (auto)                            NA         NA
## cylinders:nameford fairmont (man)                             NA         NA
## cylinders:nameford fairmont 4                                 NA         NA
## cylinders:nameford fairmont futura                            NA         NA
## cylinders:nameford fiesta                                     NA         NA
## cylinders:nameford futura                                     NA         NA
## cylinders:nameford galaxie 500                                NA         NA
## cylinders:nameford gran torino                                NA         NA
## cylinders:nameford gran torino (sw)                           NA         NA
## cylinders:nameford granada                                    NA         NA
## cylinders:nameford granada ghia                               NA         NA
## cylinders:nameford granada gl                                 NA         NA
## cylinders:nameford granada l                                  NA         NA
## cylinders:nameford ltd                                        NA         NA
## cylinders:nameford ltd landau                                 NA         NA
## cylinders:nameford maverick                                   NA         NA
## cylinders:nameford mustang                                    NA         NA
## cylinders:nameford mustang gl                                 NA         NA
## cylinders:nameford mustang ii                                 NA         NA
## cylinders:nameford mustang ii 2+2                             NA         NA
## cylinders:nameford pinto                                      NA         NA
## cylinders:nameford pinto (sw)                                 NA         NA
## cylinders:nameford pinto runabout                             NA         NA
## cylinders:nameford ranger                                     NA         NA
## cylinders:nameford thunderbird                                NA         NA
## cylinders:nameford torino                                     NA         NA
## cylinders:nameford torino 500                                 NA         NA
## cylinders:namehi 1200d                                        NA         NA
## cylinders:namehonda accord                                    NA         NA
## cylinders:namehonda accord cvcc                               NA         NA
## cylinders:namehonda accord lx                                 NA         NA
## cylinders:namehonda civic                                     NA         NA
## cylinders:namehonda civic (auto)                              NA         NA
## cylinders:namehonda civic 1300                                NA         NA
## cylinders:namehonda civic 1500 gl                             NA         NA
## cylinders:namehonda civic cvcc                                NA         NA
## cylinders:namehonda prelude                                   NA         NA
## cylinders:namemaxda glc deluxe                                NA         NA
## cylinders:namemaxda rx3                                       NA         NA
## cylinders:namemazda 626                                       NA         NA
## cylinders:namemazda glc                                       NA         NA
## cylinders:namemazda glc 4                                     NA         NA
## cylinders:namemazda glc custom                                NA         NA
## cylinders:namemazda glc custom l                              NA         NA
## cylinders:namemazda glc deluxe                                NA         NA
## cylinders:namemazda rx-4                                      NA         NA
## cylinders:namemazda rx-7 gs                                   NA         NA
## cylinders:namemazda rx2 coupe                                 NA         NA
## cylinders:namemercedes benz 300d                              NA         NA
## cylinders:namemercedes-benz 240d                              NA         NA
## cylinders:namemercedes-benz 280s                              NA         NA
## cylinders:namemercury capri 2000                              NA         NA
## cylinders:namemercury capri v6                                NA         NA
## cylinders:namemercury cougar brougham                         NA         NA
## cylinders:namemercury grand marquis                           NA         NA
## cylinders:namemercury lynx l                                  NA         NA
## cylinders:namemercury marquis                                 NA         NA
## cylinders:namemercury marquis brougham                        NA         NA
## cylinders:namemercury monarch                                 NA         NA
## cylinders:namemercury monarch ghia                            NA         NA
## cylinders:namemercury zephyr                                  NA         NA
## cylinders:namemercury zephyr 6                                NA         NA
## cylinders:namenissan stanza xe                                NA         NA
## cylinders:nameoldsmobile cutlass ciera (diesel)               NA         NA
## cylinders:nameoldsmobile cutlass ls                           NA         NA
## cylinders:nameoldsmobile cutlass salon brougham               NA         NA
## cylinders:nameoldsmobile cutlass supreme                      NA         NA
## cylinders:nameoldsmobile delta 88 royale                      NA         NA
## cylinders:nameoldsmobile omega                                NA         NA
## cylinders:nameoldsmobile omega brougham                       NA         NA
## cylinders:nameoldsmobile starfire sx                          NA         NA
## cylinders:nameoldsmobile vista cruiser                        NA         NA
## cylinders:nameopel 1900                                       NA         NA
## cylinders:nameopel manta                                      NA         NA
## cylinders:namepeugeot 304                                     NA         NA
## cylinders:namepeugeot 504                                     NA         NA
## cylinders:namepeugeot 504 (sw)                                NA         NA
## cylinders:namepeugeot 505s turbo diesel                       NA         NA
## cylinders:namepeugeot 604sl                                   NA         NA
## cylinders:nameplymouth 'cuda 340                              NA         NA
## cylinders:nameplymouth arrow gs                               NA         NA
## cylinders:nameplymouth champ                                  NA         NA
## cylinders:nameplymouth cricket                                NA         NA
## cylinders:nameplymouth custom suburb                          NA         NA
## cylinders:nameplymouth duster                                 NA         NA
## cylinders:nameplymouth fury                                   NA         NA
## cylinders:nameplymouth fury gran sedan                        NA         NA
## cylinders:nameplymouth fury iii                               NA         NA
## cylinders:nameplymouth grand fury                             NA         NA
## cylinders:nameplymouth horizon                                NA         NA
## cylinders:nameplymouth horizon 4                              NA         NA
## cylinders:nameplymouth horizon miser                          NA         NA
## cylinders:nameplymouth horizon tc3                            NA         NA
## cylinders:nameplymouth reliant                                NA         NA
## cylinders:nameplymouth sapporo                                NA         NA
## cylinders:nameplymouth satellite                              NA         NA
## cylinders:nameplymouth satellite custom                       NA         NA
## cylinders:nameplymouth satellite custom (sw)                  NA         NA
## cylinders:nameplymouth satellite sebring                      NA         NA
## cylinders:nameplymouth valiant                                NA         NA
## cylinders:nameplymouth valiant custom                         NA         NA
## cylinders:nameplymouth volare                                 NA         NA
## cylinders:nameplymouth volare custom                          NA         NA
## cylinders:nameplymouth volare premier v8                      NA         NA
## cylinders:namepontiac astro                                   NA         NA
## cylinders:namepontiac catalina                                NA         NA
## cylinders:namepontiac catalina brougham                       NA         NA
## cylinders:namepontiac firebird                                NA         NA
## cylinders:namepontiac grand prix                              NA         NA
## cylinders:namepontiac grand prix lj                           NA         NA
## cylinders:namepontiac j2000 se hatchback                      NA         NA
## cylinders:namepontiac lemans v6                               NA         NA
## cylinders:namepontiac phoenix                                 NA         NA
## cylinders:namepontiac phoenix lj                              NA         NA
## cylinders:namepontiac safari (sw)                             NA         NA
## cylinders:namepontiac sunbird coupe                           NA         NA
## cylinders:namepontiac ventura sj                              NA         NA
## cylinders:namerenault 12 (sw)                                 NA         NA
## cylinders:namerenault 12tl                                    NA         NA
## cylinders:namerenault 5 gtl                                   NA         NA
## cylinders:namesaab 99e                                        NA         NA
## cylinders:namesaab 99gle                                      NA         NA
## cylinders:namesaab 99le                                       NA         NA
## cylinders:namesubaru                                          NA         NA
## cylinders:namesubaru dl                                       NA         NA
## cylinders:nametoyota carina                                   NA         NA
## cylinders:nametoyota celica gt                                NA         NA
## cylinders:nametoyota celica gt liftback                       NA         NA
## cylinders:nametoyota corolla                                  NA         NA
## cylinders:nametoyota corolla 1200                             NA         NA
## cylinders:nametoyota corolla 1600 (sw)                        NA         NA
## cylinders:nametoyota corolla liftback                         NA         NA
## cylinders:nametoyota corolla tercel                           NA         NA
## cylinders:nametoyota corona                                   NA         NA
## cylinders:nametoyota corona hardtop                           NA         NA
## cylinders:nametoyota corona liftback                          NA         NA
## cylinders:nametoyota corona mark ii                           NA         NA
## cylinders:nametoyota cressida                                 NA         NA
## cylinders:nametoyota mark ii                                  NA         NA
## cylinders:nametoyota starlet                                  NA         NA
## cylinders:nametoyota tercel                                   NA         NA
## cylinders:nametoyouta corona mark ii (sw)                     NA         NA
## cylinders:nametriumph tr7 coupe                               NA         NA
## cylinders:namevokswagen rabbit                                NA         NA
## cylinders:namevolkswagen 1131 deluxe sedan                    NA         NA
## cylinders:namevolkswagen 411 (sw)                             NA         NA
## cylinders:namevolkswagen dasher                               NA         NA
## cylinders:namevolkswagen jetta                                NA         NA
## cylinders:namevolkswagen model 111                            NA         NA
## cylinders:namevolkswagen rabbit                               NA         NA
## cylinders:namevolkswagen rabbit custom                        NA         NA
## cylinders:namevolkswagen rabbit custom diesel                 NA         NA
## cylinders:namevolkswagen rabbit l                             NA         NA
## cylinders:namevolkswagen scirocco                             NA         NA
## cylinders:namevolkswagen super beetle                         NA         NA
## cylinders:namevolkswagen type 3                               NA         NA
## cylinders:namevolvo 144ea                                     NA         NA
## cylinders:namevolvo 145e (sw)                                 NA         NA
## cylinders:namevolvo 244dl                                     NA         NA
## cylinders:namevolvo 245                                       NA         NA
## cylinders:namevolvo 264gl                                     NA         NA
## cylinders:namevolvo diesel                                    NA         NA
## cylinders:namevw dasher (diesel)                              NA         NA
## cylinders:namevw pickup                                       NA         NA
## cylinders:namevw rabbit                                       NA         NA
## cylinders:namevw rabbit c (diesel)                            NA         NA
## cylinders:namevw rabbit custom                                NA         NA
## displacement:horsepower                                9.741e-02        NaN
## displacement:weight                                   -6.496e-03        NaN
## displacement:acceleration                              4.453e-03        NaN
## displacement:year                                     -1.747e-02        NaN
## displacement:origin                                    4.278e+00        NaN
## displacement:nameamc ambassador dpl                           NA         NA
## displacement:nameamc ambassador sst                           NA         NA
## displacement:nameamc concord                                  NA         NA
## displacement:nameamc concord d/l                              NA         NA
## displacement:nameamc concord dl 6                             NA         NA
## displacement:nameamc gremlin                          -1.171e+01        NaN
## displacement:nameamc hornet                           -5.284e+00        NaN
## displacement:nameamc hornet sportabout (sw)                   NA         NA
## displacement:nameamc matador                          -3.359e+00        NaN
## displacement:nameamc matador (sw)                             NA         NA
## displacement:nameamc pacer                                    NA         NA
## displacement:nameamc pacer d/l                                NA         NA
## displacement:nameamc rebel sst                                NA         NA
## displacement:nameamc spirit dl                                NA         NA
## displacement:nameaudi 100 ls                                  NA         NA
## displacement:nameaudi 100ls                           -4.622e+01        NaN
## displacement:nameaudi 4000                                    NA         NA
## displacement:nameaudi 5000                                    NA         NA
## displacement:nameaudi 5000s (diesel)                          NA         NA
## displacement:nameaudi fox                                     NA         NA
## displacement:namebmw 2002                                     NA         NA
## displacement:namebmw 320i                                     NA         NA
## displacement:namebuick century                                NA         NA
## displacement:namebuick century 350                            NA         NA
## displacement:namebuick century limited                        NA         NA
## displacement:namebuick century luxus (sw)                     NA         NA
## displacement:namebuick century special                        NA         NA
## displacement:namebuick electra 225 custom                     NA         NA
## displacement:namebuick estate wagon (sw)              -5.250e+01        NaN
## displacement:namebuick lesabre custom                         NA         NA
## displacement:namebuick opel isuzu deluxe                      NA         NA
## displacement:namebuick regal sport coupe (turbo)              NA         NA
## displacement:namebuick skyhawk                                NA         NA
## displacement:namebuick skylark                                NA         NA
## displacement:namebuick skylark 320                            NA         NA
## displacement:namebuick skylark limited                        NA         NA
## displacement:namecadillac eldorado                            NA         NA
## displacement:namecadillac seville                             NA         NA
## displacement:namecapri ii                                     NA         NA
## displacement:namechevroelt chevelle malibu                    NA         NA
## displacement:namechevrolet bel air                            NA         NA
## displacement:namechevrolet camaro                             NA         NA
## displacement:namechevrolet caprice classic            -1.695e+01        NaN
## displacement:namechevrolet cavalier                           NA         NA
## displacement:namechevrolet cavalier 2-door                    NA         NA
## displacement:namechevrolet cavalier wagon                     NA         NA
## displacement:namechevrolet chevelle concours (sw)             NA         NA
## displacement:namechevrolet chevelle malibu                    NA         NA
## displacement:namechevrolet chevelle malibu classic            NA         NA
## displacement:namechevrolet chevette                    8.781e+00        NaN
## displacement:namechevrolet citation                           NA         NA
## displacement:namechevrolet concours                           NA         NA
## displacement:namechevrolet impala                     -1.607e+01        NaN
## displacement:namechevrolet malibu                             NA         NA
## displacement:namechevrolet malibu classic (sw)                NA         NA
## displacement:namechevrolet monte carlo                        NA         NA
## displacement:namechevrolet monte carlo landau         -3.639e+01        NaN
## displacement:namechevrolet monte carlo s                      NA         NA
## displacement:namechevrolet monza 2+2                          NA         NA
## displacement:namechevrolet nova                               NA         NA
## displacement:namechevrolet nova custom                        NA         NA
## displacement:namechevrolet vega                               NA         NA
## displacement:namechevrolet vega (sw)                          NA         NA
## displacement:namechevrolet vega 2300                          NA         NA
## displacement:namechevrolet woody                              NA         NA
## displacement:namechevy c10                                    NA         NA
## displacement:namechevy c20                                    NA         NA
## displacement:namechevy s-10                                   NA         NA
## displacement:namechrysler cordoba                             NA         NA
## displacement:namechrysler lebaron medallion                   NA         NA
## displacement:namechrysler lebaron salon                       NA         NA
## displacement:namechrysler lebaron town @ country (sw)         NA         NA
## displacement:namechrysler new yorker brougham                 NA         NA
## displacement:namechrysler newport royal                       NA         NA
## displacement:namedatsun 1200                                  NA         NA
## displacement:namedatsun 200-sx                                NA         NA
## displacement:namedatsun 200sx                                 NA         NA
## displacement:namedatsun 210                                   NA         NA
## displacement:namedatsun 210 mpg                               NA         NA
## displacement:namedatsun 280-zx                                NA         NA
## displacement:namedatsun 310                                   NA         NA
## displacement:namedatsun 310 gx                                NA         NA
## displacement:namedatsun 510                                   NA         NA
## displacement:namedatsun 510 (sw)                              NA         NA
## displacement:namedatsun 510 hatchback                         NA         NA
## displacement:namedatsun 610                                   NA         NA
## displacement:namedatsun 710                           -1.928e+00        NaN
## displacement:namedatsun 810                                   NA         NA
## displacement:namedatsun 810 maxima                            NA         NA
## displacement:namedatsun b-210                                 NA         NA
## displacement:namedatsun b210                                  NA         NA
## displacement:namedatsun b210 gx                               NA         NA
## displacement:namedatsun f-10 hatchback                        NA         NA
## displacement:namedatsun pl510                                 NA         NA
## displacement:namedodge aries se                               NA         NA
## displacement:namedodge aries wagon (sw)                       NA         NA
## displacement:namedodge aspen                                  NA         NA
## displacement:namedodge aspen 6                                NA         NA
## displacement:namedodge aspen se                               NA         NA
## displacement:namedodge challenger se                          NA         NA
## displacement:namedodge charger 2.2                            NA         NA
## displacement:namedodge colt                            9.813e+00        NaN
## displacement:namedodge colt (sw)                              NA         NA
## displacement:namedodge colt hardtop                           NA         NA
## displacement:namedodge colt hatchback custom                  NA         NA
## displacement:namedodge colt m/m                               NA         NA
## displacement:namedodge coronet brougham                       NA         NA
## displacement:namedodge coronet custom                         NA         NA
## displacement:namedodge coronet custom (sw)                    NA         NA
## displacement:namedodge d100                                   NA         NA
## displacement:namedodge d200                                   NA         NA
## displacement:namedodge dart custom                            NA         NA
## displacement:namedodge diplomat                               NA         NA
## displacement:namedodge magnum xe                              NA         NA
## displacement:namedodge monaco (sw)                            NA         NA
## displacement:namedodge monaco brougham                        NA         NA
## displacement:namedodge omni                                   NA         NA
## displacement:namedodge rampage                                NA         NA
## displacement:namedodge st. regis                              NA         NA
## displacement:namefiat 124 sport coupe                         NA         NA
## displacement:namefiat 124 tc                                  NA         NA
## displacement:namefiat 124b                                    NA         NA
## displacement:namefiat 128                             -7.103e-01        NaN
## displacement:namefiat 131                                     NA         NA
## displacement:namefiat strada custom                           NA         NA
## displacement:namefiat x1.9                                    NA         NA
## displacement:nameford country                                 NA         NA
## displacement:nameford country squire (sw)             -3.278e+01        NaN
## displacement:nameford escort 2h                               NA         NA
## displacement:nameford escort 4w                               NA         NA
## displacement:nameford f108                                    NA         NA
## displacement:nameford f250                                    NA         NA
## displacement:nameford fairmont                                NA         NA
## displacement:nameford fairmont (auto)                         NA         NA
## displacement:nameford fairmont (man)                          NA         NA
## displacement:nameford fairmont 4                              NA         NA
## displacement:nameford fairmont futura                         NA         NA
## displacement:nameford fiesta                                  NA         NA
## displacement:nameford futura                                  NA         NA
## displacement:nameford galaxie 500                     -4.126e+01        NaN
## displacement:nameford gran torino                     -1.879e+01        NaN
## displacement:nameford gran torino (sw)                        NA         NA
## displacement:nameford granada                                 NA         NA
## displacement:nameford granada ghia                            NA         NA
## displacement:nameford granada gl                              NA         NA
## displacement:nameford granada l                               NA         NA
## displacement:nameford ltd                                     NA         NA
## displacement:nameford ltd landau                              NA         NA
## displacement:nameford maverick                        -1.580e+00        NaN
## displacement:nameford mustang                                 NA         NA
## displacement:nameford mustang gl                              NA         NA
## displacement:nameford mustang ii                              NA         NA
## displacement:nameford mustang ii 2+2                          NA         NA
## displacement:nameford pinto                            1.152e+01        NaN
## displacement:nameford pinto (sw)                              NA         NA
## displacement:nameford pinto runabout                          NA         NA
## displacement:nameford ranger                                  NA         NA
## displacement:nameford thunderbird                             NA         NA
## displacement:nameford torino                                  NA         NA
## displacement:nameford torino 500                              NA         NA
## displacement:namehi 1200d                                     NA         NA
## displacement:namehonda accord                                 NA         NA
## displacement:namehonda accord cvcc                            NA         NA
## displacement:namehonda accord lx                              NA         NA
## displacement:namehonda civic                          -2.369e+00        NaN
## displacement:namehonda civic (auto)                           NA         NA
## displacement:namehonda civic 1300                             NA         NA
## displacement:namehonda civic 1500 gl                          NA         NA
## displacement:namehonda civic cvcc                             NA         NA
## displacement:namehonda prelude                                NA         NA
## displacement:namemaxda glc deluxe                             NA         NA
## displacement:namemaxda rx3                                    NA         NA
## displacement:namemazda 626                                    NA         NA
## displacement:namemazda glc                                    NA         NA
## displacement:namemazda glc 4                                  NA         NA
## displacement:namemazda glc custom                             NA         NA
## displacement:namemazda glc custom l                           NA         NA
## displacement:namemazda glc deluxe                             NA         NA
## displacement:namemazda rx-4                                   NA         NA
## displacement:namemazda rx-7 gs                                NA         NA
## displacement:namemazda rx2 coupe                              NA         NA
## displacement:namemercedes benz 300d                           NA         NA
## displacement:namemercedes-benz 240d                           NA         NA
## displacement:namemercedes-benz 280s                           NA         NA
## displacement:namemercury capri 2000                           NA         NA
## displacement:namemercury capri v6                             NA         NA
## displacement:namemercury cougar brougham                      NA         NA
## displacement:namemercury grand marquis                        NA         NA
## displacement:namemercury lynx l                               NA         NA
## displacement:namemercury marquis                              NA         NA
## displacement:namemercury marquis brougham                     NA         NA
## displacement:namemercury monarch                              NA         NA
## displacement:namemercury monarch ghia                         NA         NA
## displacement:namemercury zephyr                               NA         NA
## displacement:namemercury zephyr 6                             NA         NA
## displacement:namenissan stanza xe                             NA         NA
## displacement:nameoldsmobile cutlass ciera (diesel)            NA         NA
## displacement:nameoldsmobile cutlass ls                        NA         NA
## displacement:nameoldsmobile cutlass salon brougham            NA         NA
## displacement:nameoldsmobile cutlass supreme                   NA         NA
## displacement:nameoldsmobile delta 88 royale                   NA         NA
## displacement:nameoldsmobile omega                             NA         NA
## displacement:nameoldsmobile omega brougham                    NA         NA
## displacement:nameoldsmobile starfire sx                       NA         NA
## displacement:nameoldsmobile vista cruiser                     NA         NA
## displacement:nameopel 1900                                    NA         NA
## displacement:nameopel manta                            7.265e+00        NaN
## displacement:namepeugeot 304                                  NA         NA
## displacement:namepeugeot 504                           5.738e+00        NaN
## displacement:namepeugeot 504 (sw)                             NA         NA
## displacement:namepeugeot 505s turbo diesel                    NA         NA
## displacement:namepeugeot 604sl                                NA         NA
## displacement:nameplymouth 'cuda 340                           NA         NA
## displacement:nameplymouth arrow gs                            NA         NA
## displacement:nameplymouth champ                               NA         NA
## displacement:nameplymouth cricket                             NA         NA
## displacement:nameplymouth custom suburb                       NA         NA
## displacement:nameplymouth duster                              NA         NA
## displacement:nameplymouth fury                                NA         NA
## displacement:nameplymouth fury gran sedan                     NA         NA
## displacement:nameplymouth fury iii                    -3.956e+01        NaN
## displacement:nameplymouth grand fury                          NA         NA
## displacement:nameplymouth horizon                             NA         NA
## displacement:nameplymouth horizon 4                           NA         NA
## displacement:nameplymouth horizon miser                       NA         NA
## displacement:nameplymouth horizon tc3                         NA         NA
## displacement:nameplymouth reliant                             NA         NA
## displacement:nameplymouth sapporo                             NA         NA
## displacement:nameplymouth satellite                           NA         NA
## displacement:nameplymouth satellite custom                    NA         NA
## displacement:nameplymouth satellite custom (sw)               NA         NA
## displacement:nameplymouth satellite sebring                   NA         NA
## displacement:nameplymouth valiant                             NA         NA
## displacement:nameplymouth valiant custom                      NA         NA
## displacement:nameplymouth volare                              NA         NA
## displacement:nameplymouth volare custom                       NA         NA
## displacement:nameplymouth volare premier v8                   NA         NA
## displacement:namepontiac astro                                NA         NA
## displacement:namepontiac catalina                             NA         NA
## displacement:namepontiac catalina brougham                    NA         NA
## displacement:namepontiac firebird                             NA         NA
## displacement:namepontiac grand prix                           NA         NA
## displacement:namepontiac grand prix lj                        NA         NA
## displacement:namepontiac j2000 se hatchback                   NA         NA
## displacement:namepontiac lemans v6                            NA         NA
## displacement:namepontiac phoenix                              NA         NA
## displacement:namepontiac phoenix lj                           NA         NA
## displacement:namepontiac safari (sw)                          NA         NA
## displacement:namepontiac sunbird coupe                        NA         NA
## displacement:namepontiac ventura sj                           NA         NA
## displacement:namerenault 12 (sw)                              NA         NA
## displacement:namerenault 12tl                                 NA         NA
## displacement:namerenault 5 gtl                                NA         NA
## displacement:namesaab 99e                                     NA         NA
## displacement:namesaab 99gle                                   NA         NA
## displacement:namesaab 99le                                    NA         NA
## displacement:namesubaru                               -4.363e+00        NaN
## displacement:namesubaru dl                                    NA         NA
## displacement:nametoyota carina                                NA         NA
## displacement:nametoyota celica gt                             NA         NA
## displacement:nametoyota celica gt liftback                    NA         NA
## displacement:nametoyota corolla                        3.101e-01        NaN
## displacement:nametoyota corolla 1200                          NA         NA
## displacement:nametoyota corolla 1600 (sw)                     NA         NA
## displacement:nametoyota corolla liftback                      NA         NA
## displacement:nametoyota corolla tercel                        NA         NA
## displacement:nametoyota corona                                NA         NA
## displacement:nametoyota corona hardtop                        NA         NA
## displacement:nametoyota corona liftback                       NA         NA
## displacement:nametoyota corona mark ii                        NA         NA
## displacement:nametoyota cressida                              NA         NA
## displacement:nametoyota mark ii                               NA         NA
## displacement:nametoyota starlet                               NA         NA
## displacement:nametoyota tercel                                NA         NA
## displacement:nametoyouta corona mark ii (sw)                  NA         NA
## displacement:nametriumph tr7 coupe                            NA         NA
## displacement:namevokswagen rabbit                             NA         NA
## displacement:namevolkswagen 1131 deluxe sedan                 NA         NA
## displacement:namevolkswagen 411 (sw)                          NA         NA
## displacement:namevolkswagen dasher                     9.204e-01        NaN
## displacement:namevolkswagen jetta                             NA         NA
## displacement:namevolkswagen model 111                         NA         NA
## displacement:namevolkswagen rabbit                     5.203e+00        NaN
## displacement:namevolkswagen rabbit custom                     NA         NA
## displacement:namevolkswagen rabbit custom diesel              NA         NA
## displacement:namevolkswagen rabbit l                          NA         NA
## displacement:namevolkswagen scirocco                          NA         NA
## displacement:namevolkswagen super beetle                      NA         NA
## displacement:namevolkswagen type 3                            NA         NA
## displacement:namevolvo 144ea                                  NA         NA
## displacement:namevolvo 145e (sw)                              NA         NA
## displacement:namevolvo 244dl                                  NA         NA
## displacement:namevolvo 245                                    NA         NA
## displacement:namevolvo 264gl                                  NA         NA
## displacement:namevolvo diesel                                 NA         NA
## displacement:namevw dasher (diesel)                           NA         NA
## displacement:namevw pickup                                    NA         NA
## displacement:namevw rabbit                                    NA         NA
## displacement:namevw rabbit c (diesel)                         NA         NA
## displacement:namevw rabbit custom                             NA         NA
## horsepower:weight                                      6.227e-03        NaN
## horsepower:acceleration                                3.414e-01        NaN
## horsepower:year                                       -9.627e-02        NaN
## horsepower:origin                                     -4.742e+00        NaN
## horsepower:nameamc ambassador dpl                             NA         NA
## horsepower:nameamc ambassador sst                             NA         NA
## horsepower:nameamc concord                                    NA         NA
## horsepower:nameamc concord d/l                                NA         NA
## horsepower:nameamc concord dl 6                               NA         NA
## horsepower:nameamc gremlin                                    NA         NA
## horsepower:nameamc hornet                             -2.299e+01        NaN
## horsepower:nameamc hornet sportabout (sw)                     NA         NA
## horsepower:nameamc matador                            -2.352e+01        NaN
## horsepower:nameamc matador (sw)                               NA         NA
## horsepower:nameamc pacer                                      NA         NA
## horsepower:nameamc pacer d/l                                  NA         NA
## horsepower:nameamc rebel sst                                  NA         NA
## horsepower:nameamc spirit dl                                  NA         NA
## horsepower:nameaudi 100 ls                                    NA         NA
## horsepower:nameaudi 100ls                                     NA         NA
## horsepower:nameaudi 4000                                      NA         NA
## horsepower:nameaudi 5000                                      NA         NA
## horsepower:nameaudi 5000s (diesel)                            NA         NA
## horsepower:nameaudi fox                                       NA         NA
## horsepower:namebmw 2002                                       NA         NA
## horsepower:namebmw 320i                                       NA         NA
## horsepower:namebuick century                                  NA         NA
## horsepower:namebuick century 350                              NA         NA
## horsepower:namebuick century limited                          NA         NA
## horsepower:namebuick century luxus (sw)                       NA         NA
## horsepower:namebuick century special                          NA         NA
## horsepower:namebuick electra 225 custom                       NA         NA
## horsepower:namebuick estate wagon (sw)                        NA         NA
## horsepower:namebuick lesabre custom                           NA         NA
## horsepower:namebuick opel isuzu deluxe                        NA         NA
## horsepower:namebuick regal sport coupe (turbo)                NA         NA
## horsepower:namebuick skyhawk                                  NA         NA
## horsepower:namebuick skylark                                  NA         NA
## horsepower:namebuick skylark 320                              NA         NA
## horsepower:namebuick skylark limited                          NA         NA
## horsepower:namecadillac eldorado                              NA         NA
## horsepower:namecadillac seville                               NA         NA
## horsepower:namecapri ii                                       NA         NA
## horsepower:namechevroelt chevelle malibu                      NA         NA
## horsepower:namechevrolet bel air                              NA         NA
## horsepower:namechevrolet camaro                               NA         NA
## horsepower:namechevrolet caprice classic              -2.611e+01        NaN
## horsepower:namechevrolet cavalier                             NA         NA
## horsepower:namechevrolet cavalier 2-door                      NA         NA
## horsepower:namechevrolet cavalier wagon                       NA         NA
## horsepower:namechevrolet chevelle concours (sw)               NA         NA
## horsepower:namechevrolet chevelle malibu                      NA         NA
## horsepower:namechevrolet chevelle malibu classic              NA         NA
## horsepower:namechevrolet chevette                     -1.135e+01        NaN
## horsepower:namechevrolet citation                     -1.995e+00        NaN
## horsepower:namechevrolet concours                             NA         NA
## horsepower:namechevrolet impala                       -4.807e+01        NaN
## horsepower:namechevrolet malibu                               NA         NA
## horsepower:namechevrolet malibu classic (sw)                  NA         NA
## horsepower:namechevrolet monte carlo                          NA         NA
## horsepower:namechevrolet monte carlo landau                   NA         NA
## horsepower:namechevrolet monte carlo s                        NA         NA
## horsepower:namechevrolet monza 2+2                            NA         NA
## horsepower:namechevrolet nova                         -2.771e+01        NaN
## horsepower:namechevrolet nova custom                          NA         NA
## horsepower:namechevrolet vega                         -1.685e+01        NaN
## horsepower:namechevrolet vega (sw)                            NA         NA
## horsepower:namechevrolet vega 2300                            NA         NA
## horsepower:namechevrolet woody                                NA         NA
## horsepower:namechevy c10                                      NA         NA
## horsepower:namechevy c20                                      NA         NA
## horsepower:namechevy s-10                                     NA         NA
## horsepower:namechrysler cordoba                               NA         NA
## horsepower:namechrysler lebaron medallion                     NA         NA
## horsepower:namechrysler lebaron salon                         NA         NA
## horsepower:namechrysler lebaron town @ country (sw)           NA         NA
## horsepower:namechrysler new yorker brougham                   NA         NA
## horsepower:namechrysler newport royal                         NA         NA
## horsepower:namedatsun 1200                                    NA         NA
## horsepower:namedatsun 200-sx                                  NA         NA
## horsepower:namedatsun 200sx                                   NA         NA
## horsepower:namedatsun 210                                     NA         NA
## horsepower:namedatsun 210 mpg                                 NA         NA
## horsepower:namedatsun 280-zx                                  NA         NA
## horsepower:namedatsun 310                                     NA         NA
## horsepower:namedatsun 310 gx                                  NA         NA
## horsepower:namedatsun 510                                     NA         NA
## horsepower:namedatsun 510 (sw)                                NA         NA
## horsepower:namedatsun 510 hatchback                           NA         NA
## horsepower:namedatsun 610                                     NA         NA
## horsepower:namedatsun 710                                     NA         NA
## horsepower:namedatsun 810                                     NA         NA
## horsepower:namedatsun 810 maxima                              NA         NA
## horsepower:namedatsun b-210                                   NA         NA
## horsepower:namedatsun b210                                    NA         NA
## horsepower:namedatsun b210 gx                                 NA         NA
## horsepower:namedatsun f-10 hatchback                          NA         NA
## horsepower:namedatsun pl510                                   NA         NA
## horsepower:namedodge aries se                                 NA         NA
## horsepower:namedodge aries wagon (sw)                         NA         NA
## horsepower:namedodge aspen                            -2.242e+01        NaN
## horsepower:namedodge aspen 6                                  NA         NA
## horsepower:namedodge aspen se                                 NA         NA
## horsepower:namedodge challenger se                            NA         NA
## horsepower:namedodge charger 2.2                              NA         NA
## horsepower:namedodge colt                             -1.491e+01        NaN
## horsepower:namedodge colt (sw)                                NA         NA
## horsepower:namedodge colt hardtop                             NA         NA
## horsepower:namedodge colt hatchback custom                    NA         NA
## horsepower:namedodge colt m/m                                 NA         NA
## horsepower:namedodge coronet brougham                         NA         NA
## horsepower:namedodge coronet custom                           NA         NA
## horsepower:namedodge coronet custom (sw)                      NA         NA
## horsepower:namedodge d100                                     NA         NA
## horsepower:namedodge d200                                     NA         NA
## horsepower:namedodge dart custom                              NA         NA
## horsepower:namedodge diplomat                                 NA         NA
## horsepower:namedodge magnum xe                                NA         NA
## horsepower:namedodge monaco (sw)                              NA         NA
## horsepower:namedodge monaco brougham                          NA         NA
## horsepower:namedodge omni                                     NA         NA
## horsepower:namedodge rampage                                  NA         NA
## horsepower:namedodge st. regis                                NA         NA
## horsepower:namefiat 124 sport coupe                           NA         NA
## horsepower:namefiat 124 tc                                    NA         NA
## horsepower:namefiat 124b                                      NA         NA
## horsepower:namefiat 128                                       NA         NA
## horsepower:namefiat 131                                       NA         NA
## horsepower:namefiat strada custom                             NA         NA
## horsepower:namefiat x1.9                                      NA         NA
## horsepower:nameford country                                   NA         NA
## horsepower:nameford country squire (sw)                       NA         NA
## horsepower:nameford escort 2h                                 NA         NA
## horsepower:nameford escort 4w                                 NA         NA
## horsepower:nameford f108                                      NA         NA
## horsepower:nameford f250                                      NA         NA
## horsepower:nameford fairmont                                  NA         NA
## horsepower:nameford fairmont (auto)                           NA         NA
## horsepower:nameford fairmont (man)                            NA         NA
## horsepower:nameford fairmont 4                                NA         NA
## horsepower:nameford fairmont futura                           NA         NA
## horsepower:nameford fiesta                                    NA         NA
## horsepower:nameford futura                                    NA         NA
## horsepower:nameford galaxie 500                               NA         NA
## horsepower:nameford gran torino                       -2.784e+01        NaN
## horsepower:nameford gran torino (sw)                          NA         NA
## horsepower:nameford granada                                   NA         NA
## horsepower:nameford granada ghia                              NA         NA
## horsepower:nameford granada gl                                NA         NA
## horsepower:nameford granada l                                 NA         NA
## horsepower:nameford ltd                               -4.153e+01        NaN
## horsepower:nameford ltd landau                                NA         NA
## horsepower:nameford maverick                          -2.986e+01        NaN
## horsepower:nameford mustang                                   NA         NA
## horsepower:nameford mustang gl                                NA         NA
## horsepower:nameford mustang ii                                NA         NA
## horsepower:nameford mustang ii 2+2                            NA         NA
## horsepower:nameford pinto                             -1.429e+01        NaN
## horsepower:nameford pinto (sw)                                NA         NA
## horsepower:nameford pinto runabout                            NA         NA
## horsepower:nameford ranger                                    NA         NA
## horsepower:nameford thunderbird                               NA         NA
## horsepower:nameford torino                                    NA         NA
## horsepower:nameford torino 500                                NA         NA
## horsepower:namehi 1200d                                       NA         NA
## horsepower:namehonda accord                           -3.263e+00        NaN
## horsepower:namehonda accord cvcc                              NA         NA
## horsepower:namehonda accord lx                                NA         NA
## horsepower:namehonda civic                             5.459e-01        NaN
## horsepower:namehonda civic (auto)                             NA         NA
## horsepower:namehonda civic 1300                               NA         NA
## horsepower:namehonda civic 1500 gl                            NA         NA
## horsepower:namehonda civic cvcc                        1.358e+00        NaN
## horsepower:namehonda prelude                                  NA         NA
## horsepower:namemaxda glc deluxe                               NA         NA
## horsepower:namemaxda rx3                                      NA         NA
## horsepower:namemazda 626                              -1.008e+01        NaN
## horsepower:namemazda glc                                      NA         NA
## horsepower:namemazda glc 4                                    NA         NA
## horsepower:namemazda glc custom                               NA         NA
## horsepower:namemazda glc custom l                             NA         NA
## horsepower:namemazda glc deluxe                               NA         NA
## horsepower:namemazda rx-4                                     NA         NA
## horsepower:namemazda rx-7 gs                                  NA         NA
## horsepower:namemazda rx2 coupe                                NA         NA
## horsepower:namemercedes benz 300d                             NA         NA
## horsepower:namemercedes-benz 240d                             NA         NA
## horsepower:namemercedes-benz 280s                             NA         NA
## horsepower:namemercury capri 2000                             NA         NA
## horsepower:namemercury capri v6                               NA         NA
## horsepower:namemercury cougar brougham                        NA         NA
## horsepower:namemercury grand marquis                          NA         NA
## horsepower:namemercury lynx l                                 NA         NA
## horsepower:namemercury marquis                                NA         NA
## horsepower:namemercury marquis brougham                       NA         NA
## horsepower:namemercury monarch                                NA         NA
## horsepower:namemercury monarch ghia                           NA         NA
## horsepower:namemercury zephyr                                 NA         NA
## horsepower:namemercury zephyr 6                               NA         NA
## horsepower:namenissan stanza xe                               NA         NA
## horsepower:nameoldsmobile cutlass ciera (diesel)              NA         NA
## horsepower:nameoldsmobile cutlass ls                          NA         NA
## horsepower:nameoldsmobile cutlass salon brougham      -2.421e+01        NaN
## horsepower:nameoldsmobile cutlass supreme                     NA         NA
## horsepower:nameoldsmobile delta 88 royale                     NA         NA
## horsepower:nameoldsmobile omega                               NA         NA
## horsepower:nameoldsmobile omega brougham                      NA         NA
## horsepower:nameoldsmobile starfire sx                         NA         NA
## horsepower:nameoldsmobile vista cruiser                       NA         NA
## horsepower:nameopel 1900                              -5.764e+00        NaN
## horsepower:nameopel manta                                     NA         NA
## horsepower:namepeugeot 304                                    NA         NA
## horsepower:namepeugeot 504                            -2.478e+01        NaN
## horsepower:namepeugeot 504 (sw)                               NA         NA
## horsepower:namepeugeot 505s turbo diesel                      NA         NA
## horsepower:namepeugeot 604sl                                  NA         NA
## horsepower:nameplymouth 'cuda 340                             NA         NA
## horsepower:nameplymouth arrow gs                              NA         NA
## horsepower:nameplymouth champ                                 NA         NA
## horsepower:nameplymouth cricket                               NA         NA
## horsepower:nameplymouth custom suburb                         NA         NA
## horsepower:nameplymouth duster                                NA         NA
## horsepower:nameplymouth fury                                  NA         NA
## horsepower:nameplymouth fury gran sedan                       NA         NA
## horsepower:nameplymouth fury iii                              NA         NA
## horsepower:nameplymouth grand fury                            NA         NA
## horsepower:nameplymouth horizon                               NA         NA
## horsepower:nameplymouth horizon 4                             NA         NA
## horsepower:nameplymouth horizon miser                         NA         NA
## horsepower:nameplymouth horizon tc3                           NA         NA
## horsepower:nameplymouth reliant                               NA         NA
## horsepower:nameplymouth sapporo                               NA         NA
## horsepower:nameplymouth satellite                             NA         NA
## horsepower:nameplymouth satellite custom                      NA         NA
## horsepower:nameplymouth satellite custom (sw)                 NA         NA
## horsepower:nameplymouth satellite sebring                     NA         NA
## horsepower:nameplymouth valiant                       -2.340e+01        NaN
## horsepower:nameplymouth valiant custom                        NA         NA
## horsepower:nameplymouth volare                                NA         NA
## horsepower:nameplymouth volare custom                         NA         NA
## horsepower:nameplymouth volare premier v8                     NA         NA
## horsepower:namepontiac astro                                  NA         NA
## horsepower:namepontiac catalina                       -6.465e+01        NaN
## horsepower:namepontiac catalina brougham                      NA         NA
## horsepower:namepontiac firebird                               NA         NA
## horsepower:namepontiac grand prix                             NA         NA
## horsepower:namepontiac grand prix lj                          NA         NA
## horsepower:namepontiac j2000 se hatchback                     NA         NA
## horsepower:namepontiac lemans v6                              NA         NA
## horsepower:namepontiac phoenix                                NA         NA
## horsepower:namepontiac phoenix lj                             NA         NA
## horsepower:namepontiac safari (sw)                            NA         NA
## horsepower:namepontiac sunbird coupe                          NA         NA
## horsepower:namepontiac ventura sj                             NA         NA
## horsepower:namerenault 12 (sw)                                NA         NA
## horsepower:namerenault 12tl                                   NA         NA
## horsepower:namerenault 5 gtl                                  NA         NA
## horsepower:namesaab 99e                                       NA         NA
## horsepower:namesaab 99gle                                     NA         NA
## horsepower:namesaab 99le                              -9.820e+00        NaN
## horsepower:namesubaru                                         NA         NA
## horsepower:namesubaru dl                                      NA         NA
## horsepower:nametoyota carina                                  NA         NA
## horsepower:nametoyota celica gt                               NA         NA
## horsepower:nametoyota celica gt liftback                      NA         NA
## horsepower:nametoyota corolla                         -2.486e+00        NaN
## horsepower:nametoyota corolla 1200                            NA         NA
## horsepower:nametoyota corolla 1600 (sw)                       NA         NA
## horsepower:nametoyota corolla liftback                        NA         NA
## horsepower:nametoyota corolla tercel                          NA         NA
## horsepower:nametoyota corona                                  NA         NA
## horsepower:nametoyota corona hardtop                          NA         NA
## horsepower:nametoyota corona liftback                         NA         NA
## horsepower:nametoyota corona mark ii                          NA         NA
## horsepower:nametoyota cressida                                NA         NA
## horsepower:nametoyota mark ii                                 NA         NA
## horsepower:nametoyota starlet                                 NA         NA
## horsepower:nametoyota tercel                                  NA         NA
## horsepower:nametoyouta corona mark ii (sw)                    NA         NA
## horsepower:nametriumph tr7 coupe                              NA         NA
## horsepower:namevokswagen rabbit                               NA         NA
## horsepower:namevolkswagen 1131 deluxe sedan                   NA         NA
## horsepower:namevolkswagen 411 (sw)                            NA         NA
## horsepower:namevolkswagen dasher                              NA         NA
## horsepower:namevolkswagen jetta                               NA         NA
## horsepower:namevolkswagen model 111                           NA         NA
## horsepower:namevolkswagen rabbit                              NA         NA
## horsepower:namevolkswagen rabbit custom                       NA         NA
## horsepower:namevolkswagen rabbit custom diesel                NA         NA
## horsepower:namevolkswagen rabbit l                            NA         NA
## horsepower:namevolkswagen scirocco                            NA         NA
## horsepower:namevolkswagen super beetle                        NA         NA
## horsepower:namevolkswagen type 3                              NA         NA
## horsepower:namevolvo 144ea                                    NA         NA
## horsepower:namevolvo 145e (sw)                                NA         NA
## horsepower:namevolvo 244dl                                    NA         NA
## horsepower:namevolvo 245                                      NA         NA
## horsepower:namevolvo 264gl                                    NA         NA
## horsepower:namevolvo diesel                                   NA         NA
## horsepower:namevw dasher (diesel)                             NA         NA
## horsepower:namevw pickup                                      NA         NA
## horsepower:namevw rabbit                                      NA         NA
## horsepower:namevw rabbit c (diesel)                           NA         NA
## horsepower:namevw rabbit custom                               NA         NA
## weight:acceleration                                   -5.769e-03        NaN
## weight:year                                            7.250e-03        NaN
## weight:origin                                         -3.458e-02        NaN
## weight:nameamc ambassador dpl                                 NA         NA
## weight:nameamc ambassador sst                                 NA         NA
## weight:nameamc concord                                        NA         NA
## weight:nameamc concord d/l                                    NA         NA
## weight:nameamc concord dl 6                                   NA         NA
## weight:nameamc gremlin                                 2.250e-01        NaN
## weight:nameamc hornet                                  2.047e-01        NaN
## weight:nameamc hornet sportabout (sw)                         NA         NA
## weight:nameamc matador                                 2.936e-01        NaN
## weight:nameamc matador (sw)                           -6.943e-02        NaN
## weight:nameamc pacer                                          NA         NA
## weight:nameamc pacer d/l                                      NA         NA
## weight:nameamc rebel sst                                      NA         NA
## weight:nameamc spirit dl                                      NA         NA
## weight:nameaudi 100 ls                                        NA         NA
## weight:nameaudi 100ls                                         NA         NA
## weight:nameaudi 4000                                          NA         NA
## weight:nameaudi 5000                                          NA         NA
## weight:nameaudi 5000s (diesel)                                NA         NA
## weight:nameaudi fox                                           NA         NA
## weight:namebmw 2002                                           NA         NA
## weight:namebmw 320i                                           NA         NA
## weight:namebuick century                               2.116e-01        NaN
## weight:namebuick century 350                                  NA         NA
## weight:namebuick century limited                              NA         NA
## weight:namebuick century luxus (sw)                           NA         NA
## weight:namebuick century special                              NA         NA
## weight:namebuick electra 225 custom                           NA         NA
## weight:namebuick estate wagon (sw)                            NA         NA
## weight:namebuick lesabre custom                               NA         NA
## weight:namebuick opel isuzu deluxe                            NA         NA
## weight:namebuick regal sport coupe (turbo)                    NA         NA
## weight:namebuick skyhawk                                      NA         NA
## weight:namebuick skylark                                      NA         NA
## weight:namebuick skylark 320                                  NA         NA
## weight:namebuick skylark limited                              NA         NA
## weight:namecadillac eldorado                                  NA         NA
## weight:namecadillac seville                                   NA         NA
## weight:namecapri ii                                           NA         NA
## weight:namechevroelt chevelle malibu                          NA         NA
## weight:namechevrolet bel air                                  NA         NA
## weight:namechevrolet camaro                                   NA         NA
## weight:namechevrolet caprice classic                          NA         NA
## weight:namechevrolet cavalier                                 NA         NA
## weight:namechevrolet cavalier 2-door                          NA         NA
## weight:namechevrolet cavalier wagon                           NA         NA
## weight:namechevrolet chevelle concours (sw)                   NA         NA
## weight:namechevrolet chevelle malibu                          NA         NA
## weight:namechevrolet chevelle malibu classic                  NA         NA
## weight:namechevrolet chevette                         -5.971e-02        NaN
## weight:namechevrolet citation                                 NA         NA
## weight:namechevrolet concours                                 NA         NA
## weight:namechevrolet impala                            1.436e-01        NaN
## weight:namechevrolet malibu                                   NA         NA
## weight:namechevrolet malibu classic (sw)                      NA         NA
## weight:namechevrolet monte carlo                              NA         NA
## weight:namechevrolet monte carlo landau                       NA         NA
## weight:namechevrolet monte carlo s                            NA         NA
## weight:namechevrolet monza 2+2                                NA         NA
## weight:namechevrolet nova                              3.239e-01        NaN
## weight:namechevrolet nova custom                              NA         NA
## weight:namechevrolet vega                              8.181e-02        NaN
## weight:namechevrolet vega (sw)                                NA         NA
## weight:namechevrolet vega 2300                                NA         NA
## weight:namechevrolet woody                                    NA         NA
## weight:namechevy c10                                          NA         NA
## weight:namechevy c20                                          NA         NA
## weight:namechevy s-10                                         NA         NA
## weight:namechrysler cordoba                                   NA         NA
## weight:namechrysler lebaron medallion                         NA         NA
## weight:namechrysler lebaron salon                             NA         NA
## weight:namechrysler lebaron town @ country (sw)               NA         NA
## weight:namechrysler new yorker brougham                       NA         NA
## weight:namechrysler newport royal                             NA         NA
## weight:namedatsun 1200                                        NA         NA
## weight:namedatsun 200-sx                                      NA         NA
## weight:namedatsun 200sx                                       NA         NA
## weight:namedatsun 210                                 -2.938e-02        NaN
## weight:namedatsun 210 mpg                                     NA         NA
## weight:namedatsun 280-zx                                      NA         NA
## weight:namedatsun 310                                         NA         NA
## weight:namedatsun 310 gx                                      NA         NA
## weight:namedatsun 510                                         NA         NA
## weight:namedatsun 510 (sw)                                    NA         NA
## weight:namedatsun 510 hatchback                               NA         NA
## weight:namedatsun 610                                         NA         NA
## weight:namedatsun 710                                         NA         NA
## weight:namedatsun 810                                         NA         NA
## weight:namedatsun 810 maxima                                  NA         NA
## weight:namedatsun b-210                                       NA         NA
## weight:namedatsun b210                                        NA         NA
## weight:namedatsun b210 gx                                     NA         NA
## weight:namedatsun f-10 hatchback                              NA         NA
## weight:namedatsun pl510                                       NA         NA
## weight:namedodge aries se                                     NA         NA
## weight:namedodge aries wagon (sw)                             NA         NA
## weight:namedodge aspen                                        NA         NA
## weight:namedodge aspen 6                                      NA         NA
## weight:namedodge aspen se                                     NA         NA
## weight:namedodge challenger se                                NA         NA
## weight:namedodge charger 2.2                                  NA         NA
## weight:namedodge colt                                         NA         NA
## weight:namedodge colt (sw)                                    NA         NA
## weight:namedodge colt hardtop                                 NA         NA
## weight:namedodge colt hatchback custom                        NA         NA
## weight:namedodge colt m/m                                     NA         NA
## weight:namedodge coronet brougham                             NA         NA
## weight:namedodge coronet custom                               NA         NA
## weight:namedodge coronet custom (sw)                          NA         NA
## weight:namedodge d100                                         NA         NA
## weight:namedodge d200                                         NA         NA
## weight:namedodge dart custom                                  NA         NA
## weight:namedodge diplomat                                     NA         NA
## weight:namedodge magnum xe                                    NA         NA
## weight:namedodge monaco (sw)                                  NA         NA
## weight:namedodge monaco brougham                              NA         NA
## weight:namedodge omni                                         NA         NA
## weight:namedodge rampage                                      NA         NA
## weight:namedodge st. regis                                    NA         NA
## weight:namefiat 124 sport coupe                               NA         NA
## weight:namefiat 124 tc                                        NA         NA
## weight:namefiat 124b                                          NA         NA
## weight:namefiat 128                                           NA         NA
## weight:namefiat 131                                           NA         NA
## weight:namefiat strada custom                                 NA         NA
## weight:namefiat x1.9                                          NA         NA
## weight:nameford country                                       NA         NA
## weight:nameford country squire (sw)                           NA         NA
## weight:nameford escort 2h                                     NA         NA
## weight:nameford escort 4w                                     NA         NA
## weight:nameford f108                                          NA         NA
## weight:nameford f250                                          NA         NA
## weight:nameford fairmont                                      NA         NA
## weight:nameford fairmont (auto)                               NA         NA
## weight:nameford fairmont (man)                                NA         NA
## weight:nameford fairmont 4                                    NA         NA
## weight:nameford fairmont futura                               NA         NA
## weight:nameford fiesta                                        NA         NA
## weight:nameford futura                                        NA         NA
## weight:nameford galaxie 500                            2.438e-01        NaN
## weight:nameford gran torino                                   NA         NA
## weight:nameford gran torino (sw)                              NA         NA
## weight:nameford granada                                       NA         NA
## weight:nameford granada ghia                                  NA         NA
## weight:nameford granada gl                                    NA         NA
## weight:nameford granada l                                     NA         NA
## weight:nameford ltd                                           NA         NA
## weight:nameford ltd landau                                    NA         NA
## weight:nameford maverick                                      NA         NA
## weight:nameford mustang                                       NA         NA
## weight:nameford mustang gl                                    NA         NA
## weight:nameford mustang ii                                    NA         NA
## weight:nameford mustang ii 2+2                                NA         NA
## weight:nameford pinto                                         NA         NA
## weight:nameford pinto (sw)                                    NA         NA
## weight:nameford pinto runabout                                NA         NA
## weight:nameford ranger                                        NA         NA
## weight:nameford thunderbird                                   NA         NA
## weight:nameford torino                                        NA         NA
## weight:nameford torino 500                                    NA         NA
## weight:namehi 1200d                                           NA         NA
## weight:namehonda accord                                       NA         NA
## weight:namehonda accord cvcc                                  NA         NA
## weight:namehonda accord lx                                    NA         NA
## weight:namehonda civic                                        NA         NA
## weight:namehonda civic (auto)                                 NA         NA
## weight:namehonda civic 1300                                   NA         NA
## weight:namehonda civic 1500 gl                                NA         NA
## weight:namehonda civic cvcc                                   NA         NA
## weight:namehonda prelude                                      NA         NA
## weight:namemaxda glc deluxe                                   NA         NA
## weight:namemaxda rx3                                          NA         NA
## weight:namemazda 626                                          NA         NA
## weight:namemazda glc                                          NA         NA
## weight:namemazda glc 4                                        NA         NA
## weight:namemazda glc custom                                   NA         NA
## weight:namemazda glc custom l                                 NA         NA
## weight:namemazda glc deluxe                                   NA         NA
## weight:namemazda rx-4                                         NA         NA
## weight:namemazda rx-7 gs                                      NA         NA
## weight:namemazda rx2 coupe                                    NA         NA
## weight:namemercedes benz 300d                                 NA         NA
## weight:namemercedes-benz 240d                                 NA         NA
## weight:namemercedes-benz 280s                                 NA         NA
## weight:namemercury capri 2000                                 NA         NA
## weight:namemercury capri v6                                   NA         NA
## weight:namemercury cougar brougham                            NA         NA
## weight:namemercury grand marquis                              NA         NA
## weight:namemercury lynx l                                     NA         NA
## weight:namemercury marquis                                    NA         NA
## weight:namemercury marquis brougham                           NA         NA
## weight:namemercury monarch                                    NA         NA
## weight:namemercury monarch ghia                               NA         NA
## weight:namemercury zephyr                                     NA         NA
## weight:namemercury zephyr 6                                   NA         NA
## weight:namenissan stanza xe                                   NA         NA
## weight:nameoldsmobile cutlass ciera (diesel)                  NA         NA
## weight:nameoldsmobile cutlass ls                              NA         NA
## weight:nameoldsmobile cutlass salon brougham                  NA         NA
## weight:nameoldsmobile cutlass supreme                         NA         NA
## weight:nameoldsmobile delta 88 royale                         NA         NA
## weight:nameoldsmobile omega                                   NA         NA
## weight:nameoldsmobile omega brougham                          NA         NA
## weight:nameoldsmobile starfire sx                             NA         NA
## weight:nameoldsmobile vista cruiser                           NA         NA
## weight:nameopel 1900                                          NA         NA
## weight:nameopel manta                                         NA         NA
## weight:namepeugeot 304                                        NA         NA
## weight:namepeugeot 504                                        NA         NA
## weight:namepeugeot 504 (sw)                                   NA         NA
## weight:namepeugeot 505s turbo diesel                          NA         NA
## weight:namepeugeot 604sl                                      NA         NA
## weight:nameplymouth 'cuda 340                                 NA         NA
## weight:nameplymouth arrow gs                                  NA         NA
## weight:nameplymouth champ                                     NA         NA
## weight:nameplymouth cricket                                   NA         NA
## weight:nameplymouth custom suburb                             NA         NA
## weight:nameplymouth duster                                    NA         NA
## weight:nameplymouth fury                                      NA         NA
## weight:nameplymouth fury gran sedan                           NA         NA
## weight:nameplymouth fury iii                                  NA         NA
## weight:nameplymouth grand fury                                NA         NA
## weight:nameplymouth horizon                                   NA         NA
## weight:nameplymouth horizon 4                                 NA         NA
## weight:nameplymouth horizon miser                             NA         NA
## weight:nameplymouth horizon tc3                               NA         NA
## weight:nameplymouth reliant                                   NA         NA
## weight:nameplymouth sapporo                                   NA         NA
## weight:nameplymouth satellite                                 NA         NA
## weight:nameplymouth satellite custom                          NA         NA
## weight:nameplymouth satellite custom (sw)                     NA         NA
## weight:nameplymouth satellite sebring                         NA         NA
## weight:nameplymouth valiant                                   NA         NA
## weight:nameplymouth valiant custom                            NA         NA
## weight:nameplymouth volare                                    NA         NA
## weight:nameplymouth volare custom                             NA         NA
## weight:nameplymouth volare premier v8                         NA         NA
## weight:namepontiac astro                                      NA         NA
## weight:namepontiac catalina                                   NA         NA
## weight:namepontiac catalina brougham                          NA         NA
## weight:namepontiac firebird                                   NA         NA
## weight:namepontiac grand prix                                 NA         NA
## weight:namepontiac grand prix lj                              NA         NA
## weight:namepontiac j2000 se hatchback                         NA         NA
## weight:namepontiac lemans v6                                  NA         NA
## weight:namepontiac phoenix                                    NA         NA
## weight:namepontiac phoenix lj                                 NA         NA
## weight:namepontiac safari (sw)                                NA         NA
## weight:namepontiac sunbird coupe                              NA         NA
## weight:namepontiac ventura sj                                 NA         NA
## weight:namerenault 12 (sw)                                    NA         NA
## weight:namerenault 12tl                                       NA         NA
## weight:namerenault 5 gtl                                      NA         NA
## weight:namesaab 99e                                           NA         NA
## weight:namesaab 99gle                                         NA         NA
## weight:namesaab 99le                                          NA         NA
## weight:namesubaru                                             NA         NA
## weight:namesubaru dl                                          NA         NA
## weight:nametoyota carina                                      NA         NA
## weight:nametoyota celica gt                                   NA         NA
## weight:nametoyota celica gt liftback                          NA         NA
## weight:nametoyota corolla                                     NA         NA
## weight:nametoyota corolla 1200                                NA         NA
## weight:nametoyota corolla 1600 (sw)                           NA         NA
## weight:nametoyota corolla liftback                            NA         NA
## weight:nametoyota corolla tercel                              NA         NA
## weight:nametoyota corona                                      NA         NA
## weight:nametoyota corona hardtop                              NA         NA
## weight:nametoyota corona liftback                             NA         NA
## weight:nametoyota corona mark ii                              NA         NA
## weight:nametoyota cressida                                    NA         NA
## weight:nametoyota mark ii                                     NA         NA
## weight:nametoyota starlet                                     NA         NA
## weight:nametoyota tercel                                      NA         NA
## weight:nametoyouta corona mark ii (sw)                        NA         NA
## weight:nametriumph tr7 coupe                                  NA         NA
## weight:namevokswagen rabbit                                   NA         NA
## weight:namevolkswagen 1131 deluxe sedan                       NA         NA
## weight:namevolkswagen 411 (sw)                                NA         NA
## weight:namevolkswagen dasher                                  NA         NA
## weight:namevolkswagen jetta                                   NA         NA
## weight:namevolkswagen model 111                               NA         NA
## weight:namevolkswagen rabbit                                  NA         NA
## weight:namevolkswagen rabbit custom                           NA         NA
## weight:namevolkswagen rabbit custom diesel                    NA         NA
## weight:namevolkswagen rabbit l                                NA         NA
## weight:namevolkswagen scirocco                                NA         NA
## weight:namevolkswagen super beetle                            NA         NA
## weight:namevolkswagen type 3                                  NA         NA
## weight:namevolvo 144ea                                        NA         NA
## weight:namevolvo 145e (sw)                                    NA         NA
## weight:namevolvo 244dl                                        NA         NA
## weight:namevolvo 245                                          NA         NA
## weight:namevolvo 264gl                                        NA         NA
## weight:namevolvo diesel                                       NA         NA
## weight:namevw dasher (diesel)                                 NA         NA
## weight:namevw pickup                                          NA         NA
## weight:namevw rabbit                                          NA         NA
## weight:namevw rabbit c (diesel)                               NA         NA
## weight:namevw rabbit custom                                   NA         NA
## acceleration:year                                             NA         NA
## acceleration:origin                                           NA         NA
## acceleration:nameamc ambassador dpl                           NA         NA
## acceleration:nameamc ambassador sst                           NA         NA
## acceleration:nameamc concord                                  NA         NA
## acceleration:nameamc concord d/l                              NA         NA
## acceleration:nameamc concord dl 6                             NA         NA
## acceleration:nameamc gremlin                                  NA         NA
## acceleration:nameamc hornet                                   NA         NA
## acceleration:nameamc hornet sportabout (sw)                   NA         NA
## acceleration:nameamc matador                                  NA         NA
## acceleration:nameamc matador (sw)                             NA         NA
## acceleration:nameamc pacer                                    NA         NA
## acceleration:nameamc pacer d/l                                NA         NA
## acceleration:nameamc rebel sst                                NA         NA
## acceleration:nameamc spirit dl                                NA         NA
## acceleration:nameaudi 100 ls                                  NA         NA
## acceleration:nameaudi 100ls                                   NA         NA
## acceleration:nameaudi 4000                                    NA         NA
## acceleration:nameaudi 5000                                    NA         NA
## acceleration:nameaudi 5000s (diesel)                          NA         NA
## acceleration:nameaudi fox                                     NA         NA
## acceleration:namebmw 2002                                     NA         NA
## acceleration:namebmw 320i                                     NA         NA
## acceleration:namebuick century                                NA         NA
## acceleration:namebuick century 350                            NA         NA
## acceleration:namebuick century limited                        NA         NA
## acceleration:namebuick century luxus (sw)                     NA         NA
## acceleration:namebuick century special                        NA         NA
## acceleration:namebuick electra 225 custom                     NA         NA
## acceleration:namebuick estate wagon (sw)                      NA         NA
## acceleration:namebuick lesabre custom                         NA         NA
## acceleration:namebuick opel isuzu deluxe                      NA         NA
## acceleration:namebuick regal sport coupe (turbo)              NA         NA
## acceleration:namebuick skyhawk                                NA         NA
## acceleration:namebuick skylark                                NA         NA
## acceleration:namebuick skylark 320                            NA         NA
## acceleration:namebuick skylark limited                        NA         NA
## acceleration:namecadillac eldorado                            NA         NA
## acceleration:namecadillac seville                             NA         NA
## acceleration:namecapri ii                                     NA         NA
## acceleration:namechevroelt chevelle malibu                    NA         NA
## acceleration:namechevrolet bel air                            NA         NA
## acceleration:namechevrolet camaro                             NA         NA
## acceleration:namechevrolet caprice classic                    NA         NA
## acceleration:namechevrolet cavalier                           NA         NA
## acceleration:namechevrolet cavalier 2-door                    NA         NA
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## year:namepontiac j2000 se hatchback                           NA         NA
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## year:namepontiac phoenix lj                                   NA         NA
## year:namepontiac safari (sw)                                  NA         NA
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## year:namerenault 5 gtl                                        NA         NA
## year:namesaab 99e                                             NA         NA
## year:namesaab 99gle                                           NA         NA
## year:namesaab 99le                                            NA         NA
## year:namesubaru                                               NA         NA
## year:namesubaru dl                                            NA         NA
## year:nametoyota carina                                        NA         NA
## year:nametoyota celica gt                                     NA         NA
## year:nametoyota celica gt liftback                            NA         NA
## year:nametoyota corolla                                       NA         NA
## year:nametoyota corolla 1200                                  NA         NA
## year:nametoyota corolla 1600 (sw)                             NA         NA
## year:nametoyota corolla liftback                              NA         NA
## year:nametoyota corolla tercel                                NA         NA
## year:nametoyota corona                                        NA         NA
## year:nametoyota corona hardtop                                NA         NA
## year:nametoyota corona liftback                               NA         NA
## year:nametoyota corona mark ii                                NA         NA
## year:nametoyota cressida                                      NA         NA
## year:nametoyota mark ii                                       NA         NA
## year:nametoyota starlet                                       NA         NA
## year:nametoyota tercel                                        NA         NA
## year:nametoyouta corona mark ii (sw)                          NA         NA
## year:nametriumph tr7 coupe                                    NA         NA
## year:namevokswagen rabbit                                     NA         NA
## year:namevolkswagen 1131 deluxe sedan                         NA         NA
## year:namevolkswagen 411 (sw)                                  NA         NA
## year:namevolkswagen dasher                                    NA         NA
## year:namevolkswagen jetta                                     NA         NA
## year:namevolkswagen model 111                                 NA         NA
## year:namevolkswagen rabbit                                    NA         NA
## year:namevolkswagen rabbit custom                             NA         NA
## year:namevolkswagen rabbit custom diesel                      NA         NA
## year:namevolkswagen rabbit l                                  NA         NA
## year:namevolkswagen scirocco                                  NA         NA
## year:namevolkswagen super beetle                              NA         NA
## year:namevolkswagen type 3                                    NA         NA
## year:namevolvo 144ea                                          NA         NA
## year:namevolvo 145e (sw)                                      NA         NA
## year:namevolvo 244dl                                          NA         NA
## year:namevolvo 245                                            NA         NA
## year:namevolvo 264gl                                          NA         NA
## year:namevolvo diesel                                         NA         NA
## year:namevw dasher (diesel)                                   NA         NA
## year:namevw pickup                                            NA         NA
## year:namevw rabbit                                            NA         NA
## year:namevw rabbit c (diesel)                                 NA         NA
## year:namevw rabbit custom                                     NA         NA
## origin:nameamc ambassador dpl                                 NA         NA
## origin:nameamc ambassador sst                                 NA         NA
## origin:nameamc concord                                        NA         NA
## origin:nameamc concord d/l                                    NA         NA
## origin:nameamc concord dl 6                                   NA         NA
## origin:nameamc gremlin                                        NA         NA
## origin:nameamc hornet                                         NA         NA
## origin:nameamc hornet sportabout (sw)                         NA         NA
## origin:nameamc matador                                        NA         NA
## origin:nameamc matador (sw)                                   NA         NA
## origin:nameamc pacer                                          NA         NA
## origin:nameamc pacer d/l                                      NA         NA
## origin:nameamc rebel sst                                      NA         NA
## origin:nameamc spirit dl                                      NA         NA
## origin:nameaudi 100 ls                                        NA         NA
## origin:nameaudi 100ls                                         NA         NA
## origin:nameaudi 4000                                          NA         NA
## origin:nameaudi 5000                                          NA         NA
## origin:nameaudi 5000s (diesel)                                NA         NA
## origin:nameaudi fox                                           NA         NA
## origin:namebmw 2002                                           NA         NA
## origin:namebmw 320i                                           NA         NA
## origin:namebuick century                                      NA         NA
## origin:namebuick century 350                                  NA         NA
## origin:namebuick century limited                              NA         NA
## origin:namebuick century luxus (sw)                           NA         NA
## origin:namebuick century special                              NA         NA
## origin:namebuick electra 225 custom                           NA         NA
## origin:namebuick estate wagon (sw)                            NA         NA
## origin:namebuick lesabre custom                               NA         NA
## origin:namebuick opel isuzu deluxe                            NA         NA
## origin:namebuick regal sport coupe (turbo)                    NA         NA
## origin:namebuick skyhawk                                      NA         NA
## origin:namebuick skylark                                      NA         NA
## origin:namebuick skylark 320                                  NA         NA
## origin:namebuick skylark limited                              NA         NA
## origin:namecadillac eldorado                                  NA         NA
## origin:namecadillac seville                                   NA         NA
## origin:namecapri ii                                           NA         NA
## origin:namechevroelt chevelle malibu                          NA         NA
## origin:namechevrolet bel air                                  NA         NA
## origin:namechevrolet camaro                                   NA         NA
## origin:namechevrolet caprice classic                          NA         NA
## origin:namechevrolet cavalier                                 NA         NA
## origin:namechevrolet cavalier 2-door                          NA         NA
## origin:namechevrolet cavalier wagon                           NA         NA
## origin:namechevrolet chevelle concours (sw)                   NA         NA
## origin:namechevrolet chevelle malibu                          NA         NA
## origin:namechevrolet chevelle malibu classic                  NA         NA
## origin:namechevrolet chevette                                 NA         NA
## origin:namechevrolet citation                                 NA         NA
## origin:namechevrolet concours                                 NA         NA
## origin:namechevrolet impala                                   NA         NA
## origin:namechevrolet malibu                                   NA         NA
## origin:namechevrolet malibu classic (sw)                      NA         NA
## origin:namechevrolet monte carlo                              NA         NA
## origin:namechevrolet monte carlo landau                       NA         NA
## origin:namechevrolet monte carlo s                            NA         NA
## origin:namechevrolet monza 2+2                                NA         NA
## origin:namechevrolet nova                                     NA         NA
## origin:namechevrolet nova custom                              NA         NA
## origin:namechevrolet vega                                     NA         NA
## origin:namechevrolet vega (sw)                                NA         NA
## origin:namechevrolet vega 2300                                NA         NA
## origin:namechevrolet woody                                    NA         NA
## origin:namechevy c10                                          NA         NA
## origin:namechevy c20                                          NA         NA
## origin:namechevy s-10                                         NA         NA
## origin:namechrysler cordoba                                   NA         NA
## origin:namechrysler lebaron medallion                         NA         NA
## origin:namechrysler lebaron salon                             NA         NA
## origin:namechrysler lebaron town @ country (sw)               NA         NA
## origin:namechrysler new yorker brougham                       NA         NA
## origin:namechrysler newport royal                             NA         NA
## origin:namedatsun 1200                                        NA         NA
## origin:namedatsun 200-sx                                      NA         NA
## origin:namedatsun 200sx                                       NA         NA
## origin:namedatsun 210                                         NA         NA
## origin:namedatsun 210 mpg                                     NA         NA
## origin:namedatsun 280-zx                                      NA         NA
## origin:namedatsun 310                                         NA         NA
## origin:namedatsun 310 gx                                      NA         NA
## origin:namedatsun 510                                         NA         NA
## origin:namedatsun 510 (sw)                                    NA         NA
## origin:namedatsun 510 hatchback                               NA         NA
## origin:namedatsun 610                                         NA         NA
## origin:namedatsun 710                                         NA         NA
## origin:namedatsun 810                                         NA         NA
## origin:namedatsun 810 maxima                                  NA         NA
## origin:namedatsun b-210                                       NA         NA
## origin:namedatsun b210                                        NA         NA
## origin:namedatsun b210 gx                                     NA         NA
## origin:namedatsun f-10 hatchback                              NA         NA
## origin:namedatsun pl510                                       NA         NA
## origin:namedodge aries se                                     NA         NA
## origin:namedodge aries wagon (sw)                             NA         NA
## origin:namedodge aspen                                        NA         NA
## origin:namedodge aspen 6                                      NA         NA
## origin:namedodge aspen se                                     NA         NA
## origin:namedodge challenger se                                NA         NA
## origin:namedodge charger 2.2                                  NA         NA
## origin:namedodge colt                                         NA         NA
## origin:namedodge colt (sw)                                    NA         NA
## origin:namedodge colt hardtop                                 NA         NA
## origin:namedodge colt hatchback custom                        NA         NA
## origin:namedodge colt m/m                                     NA         NA
## origin:namedodge coronet brougham                             NA         NA
## origin:namedodge coronet custom                               NA         NA
## origin:namedodge coronet custom (sw)                          NA         NA
## origin:namedodge d100                                         NA         NA
## origin:namedodge d200                                         NA         NA
## origin:namedodge dart custom                                  NA         NA
## origin:namedodge diplomat                                     NA         NA
## origin:namedodge magnum xe                                    NA         NA
## origin:namedodge monaco (sw)                                  NA         NA
## origin:namedodge monaco brougham                              NA         NA
## origin:namedodge omni                                         NA         NA
## origin:namedodge rampage                                      NA         NA
## origin:namedodge st. regis                                    NA         NA
## origin:namefiat 124 sport coupe                               NA         NA
## origin:namefiat 124 tc                                        NA         NA
## origin:namefiat 124b                                          NA         NA
## origin:namefiat 128                                           NA         NA
## origin:namefiat 131                                           NA         NA
## origin:namefiat strada custom                                 NA         NA
## origin:namefiat x1.9                                          NA         NA
## origin:nameford country                                       NA         NA
## origin:nameford country squire (sw)                           NA         NA
## origin:nameford escort 2h                                     NA         NA
## origin:nameford escort 4w                                     NA         NA
## origin:nameford f108                                          NA         NA
## origin:nameford f250                                          NA         NA
## origin:nameford fairmont                                      NA         NA
## origin:nameford fairmont (auto)                               NA         NA
## origin:nameford fairmont (man)                                NA         NA
## origin:nameford fairmont 4                                    NA         NA
## origin:nameford fairmont futura                               NA         NA
## origin:nameford fiesta                                        NA         NA
## origin:nameford futura                                        NA         NA
## origin:nameford galaxie 500                                   NA         NA
## origin:nameford gran torino                                   NA         NA
## origin:nameford gran torino (sw)                              NA         NA
## origin:nameford granada                                       NA         NA
## origin:nameford granada ghia                                  NA         NA
## origin:nameford granada gl                                    NA         NA
## origin:nameford granada l                                     NA         NA
## origin:nameford ltd                                           NA         NA
## origin:nameford ltd landau                                    NA         NA
## origin:nameford maverick                                      NA         NA
## origin:nameford mustang                                       NA         NA
## origin:nameford mustang gl                                    NA         NA
## origin:nameford mustang ii                                    NA         NA
## origin:nameford mustang ii 2+2                                NA         NA
## origin:nameford pinto                                         NA         NA
## origin:nameford pinto (sw)                                    NA         NA
## origin:nameford pinto runabout                                NA         NA
## origin:nameford ranger                                        NA         NA
## origin:nameford thunderbird                                   NA         NA
## origin:nameford torino                                        NA         NA
## origin:nameford torino 500                                    NA         NA
## origin:namehi 1200d                                           NA         NA
## origin:namehonda accord                                       NA         NA
## origin:namehonda accord cvcc                                  NA         NA
## origin:namehonda accord lx                                    NA         NA
## origin:namehonda civic                                        NA         NA
## origin:namehonda civic (auto)                                 NA         NA
## origin:namehonda civic 1300                                   NA         NA
## origin:namehonda civic 1500 gl                                NA         NA
## origin:namehonda civic cvcc                                   NA         NA
## origin:namehonda prelude                                      NA         NA
## origin:namemaxda glc deluxe                                   NA         NA
## origin:namemaxda rx3                                          NA         NA
## origin:namemazda 626                                          NA         NA
## origin:namemazda glc                                          NA         NA
## origin:namemazda glc 4                                        NA         NA
## origin:namemazda glc custom                                   NA         NA
## origin:namemazda glc custom l                                 NA         NA
## origin:namemazda glc deluxe                                   NA         NA
## origin:namemazda rx-4                                         NA         NA
## origin:namemazda rx-7 gs                                      NA         NA
## origin:namemazda rx2 coupe                                    NA         NA
## origin:namemercedes benz 300d                                 NA         NA
## origin:namemercedes-benz 240d                                 NA         NA
## origin:namemercedes-benz 280s                                 NA         NA
## origin:namemercury capri 2000                                 NA         NA
## origin:namemercury capri v6                                   NA         NA
## origin:namemercury cougar brougham                            NA         NA
## origin:namemercury grand marquis                              NA         NA
## origin:namemercury lynx l                                     NA         NA
## origin:namemercury marquis                                    NA         NA
## origin:namemercury marquis brougham                           NA         NA
## origin:namemercury monarch                                    NA         NA
## origin:namemercury monarch ghia                               NA         NA
## origin:namemercury zephyr                                     NA         NA
## origin:namemercury zephyr 6                                   NA         NA
## origin:namenissan stanza xe                                   NA         NA
## origin:nameoldsmobile cutlass ciera (diesel)                  NA         NA
## origin:nameoldsmobile cutlass ls                              NA         NA
## origin:nameoldsmobile cutlass salon brougham                  NA         NA
## origin:nameoldsmobile cutlass supreme                         NA         NA
## origin:nameoldsmobile delta 88 royale                         NA         NA
## origin:nameoldsmobile omega                                   NA         NA
## origin:nameoldsmobile omega brougham                          NA         NA
## origin:nameoldsmobile starfire sx                             NA         NA
## origin:nameoldsmobile vista cruiser                           NA         NA
## origin:nameopel 1900                                          NA         NA
## origin:nameopel manta                                         NA         NA
## origin:namepeugeot 304                                        NA         NA
## origin:namepeugeot 504                                        NA         NA
## origin:namepeugeot 504 (sw)                                   NA         NA
## origin:namepeugeot 505s turbo diesel                          NA         NA
## origin:namepeugeot 604sl                                      NA         NA
## origin:nameplymouth 'cuda 340                                 NA         NA
## origin:nameplymouth arrow gs                                  NA         NA
## origin:nameplymouth champ                                     NA         NA
## origin:nameplymouth cricket                                   NA         NA
## origin:nameplymouth custom suburb                             NA         NA
## origin:nameplymouth duster                                    NA         NA
## origin:nameplymouth fury                                      NA         NA
## origin:nameplymouth fury gran sedan                           NA         NA
## origin:nameplymouth fury iii                                  NA         NA
## origin:nameplymouth grand fury                                NA         NA
## origin:nameplymouth horizon                                   NA         NA
## origin:nameplymouth horizon 4                                 NA         NA
## origin:nameplymouth horizon miser                             NA         NA
## origin:nameplymouth horizon tc3                               NA         NA
## origin:nameplymouth reliant                                   NA         NA
## origin:nameplymouth sapporo                                   NA         NA
## origin:nameplymouth satellite                                 NA         NA
## origin:nameplymouth satellite custom                          NA         NA
## origin:nameplymouth satellite custom (sw)                     NA         NA
## origin:nameplymouth satellite sebring                         NA         NA
## origin:nameplymouth valiant                                   NA         NA
## origin:nameplymouth valiant custom                            NA         NA
## origin:nameplymouth volare                                    NA         NA
## origin:nameplymouth volare custom                             NA         NA
## origin:nameplymouth volare premier v8                         NA         NA
## origin:namepontiac astro                                      NA         NA
## origin:namepontiac catalina                                   NA         NA
## origin:namepontiac catalina brougham                          NA         NA
## origin:namepontiac firebird                                   NA         NA
## origin:namepontiac grand prix                                 NA         NA
## origin:namepontiac grand prix lj                              NA         NA
## origin:namepontiac j2000 se hatchback                         NA         NA
## origin:namepontiac lemans v6                                  NA         NA
## origin:namepontiac phoenix                                    NA         NA
## origin:namepontiac phoenix lj                                 NA         NA
## origin:namepontiac safari (sw)                                NA         NA
## origin:namepontiac sunbird coupe                              NA         NA
## origin:namepontiac ventura sj                                 NA         NA
## origin:namerenault 12 (sw)                                    NA         NA
## origin:namerenault 12tl                                       NA         NA
## origin:namerenault 5 gtl                                      NA         NA
## origin:namesaab 99e                                           NA         NA
## origin:namesaab 99gle                                         NA         NA
## origin:namesaab 99le                                          NA         NA
## origin:namesubaru                                             NA         NA
## origin:namesubaru dl                                          NA         NA
## origin:nametoyota carina                                      NA         NA
## origin:nametoyota celica gt                                   NA         NA
## origin:nametoyota celica gt liftback                          NA         NA
## origin:nametoyota corolla                                     NA         NA
## origin:nametoyota corolla 1200                                NA         NA
## origin:nametoyota corolla 1600 (sw)                           NA         NA
## origin:nametoyota corolla liftback                            NA         NA
## origin:nametoyota corolla tercel                              NA         NA
## origin:nametoyota corona                                      NA         NA
## origin:nametoyota corona hardtop                              NA         NA
## origin:nametoyota corona liftback                             NA         NA
## origin:nametoyota corona mark ii                              NA         NA
## origin:nametoyota cressida                                    NA         NA
## origin:nametoyota mark ii                                     NA         NA
## origin:nametoyota starlet                                     NA         NA
## origin:nametoyota tercel                                      NA         NA
## origin:nametoyouta corona mark ii (sw)                        NA         NA
## origin:nametriumph tr7 coupe                                  NA         NA
## origin:namevokswagen rabbit                                   NA         NA
## origin:namevolkswagen 1131 deluxe sedan                       NA         NA
## origin:namevolkswagen 411 (sw)                                NA         NA
## origin:namevolkswagen dasher                                  NA         NA
## origin:namevolkswagen jetta                                   NA         NA
## origin:namevolkswagen model 111                               NA         NA
## origin:namevolkswagen rabbit                                  NA         NA
## origin:namevolkswagen rabbit custom                           NA         NA
## origin:namevolkswagen rabbit custom diesel                    NA         NA
## origin:namevolkswagen rabbit l                                NA         NA
## origin:namevolkswagen scirocco                                NA         NA
## origin:namevolkswagen super beetle                            NA         NA
## origin:namevolkswagen type 3                                  NA         NA
## origin:namevolvo 144ea                                        NA         NA
## origin:namevolvo 145e (sw)                                    NA         NA
## origin:namevolvo 244dl                                        NA         NA
## origin:namevolvo 245                                          NA         NA
## origin:namevolvo 264gl                                        NA         NA
## origin:namevolvo diesel                                       NA         NA
## origin:namevw dasher (diesel)                                 NA         NA
## origin:namevw pickup                                          NA         NA
## origin:namevw rabbit                                          NA         NA
## origin:namevw rabbit c (diesel)                               NA         NA
## origin:namevw rabbit custom                                   NA         NA
##                                                       t value Pr(>|t|)
## (Intercept)                                               NaN      NaN
## cylinders                                                 NaN      NaN
## displacement                                              NaN      NaN
## horsepower                                                NaN      NaN
## weight                                                    NaN      NaN
## acceleration                                              NaN      NaN
## year                                                      NaN      NaN
## origin                                                    NaN      NaN
## nameamc ambassador dpl                                    NaN      NaN
## nameamc ambassador sst                                    NaN      NaN
## nameamc concord                                           NaN      NaN
## nameamc concord d/l                                       NaN      NaN
## nameamc concord dl 6                                      NaN      NaN
## nameamc gremlin                                           NaN      NaN
## nameamc hornet                                            NaN      NaN
## nameamc hornet sportabout (sw)                            NaN      NaN
## nameamc matador                                           NaN      NaN
## nameamc matador (sw)                                      NaN      NaN
## nameamc pacer                                             NaN      NaN
## nameamc pacer d/l                                         NaN      NaN
## nameamc rebel sst                                         NaN      NaN
## nameamc spirit dl                                         NaN      NaN
## nameaudi 100 ls                                           NaN      NaN
## nameaudi 100ls                                            NaN      NaN
## nameaudi 4000                                             NaN      NaN
## nameaudi 5000                                             NaN      NaN
## nameaudi 5000s (diesel)                                   NaN      NaN
## nameaudi fox                                              NaN      NaN
## namebmw 2002                                              NaN      NaN
## namebmw 320i                                              NaN      NaN
## namebuick century                                         NaN      NaN
## namebuick century 350                                     NaN      NaN
## namebuick century limited                                 NaN      NaN
## namebuick century luxus (sw)                              NaN      NaN
## namebuick century special                                 NaN      NaN
## namebuick electra 225 custom                              NaN      NaN
## namebuick estate wagon (sw)                               NaN      NaN
## namebuick lesabre custom                                  NaN      NaN
## namebuick opel isuzu deluxe                               NaN      NaN
## namebuick regal sport coupe (turbo)                       NaN      NaN
## namebuick skyhawk                                         NaN      NaN
## namebuick skylark                                         NaN      NaN
## namebuick skylark 320                                     NaN      NaN
## namebuick skylark limited                                 NaN      NaN
## namecadillac eldorado                                     NaN      NaN
## namecadillac seville                                      NaN      NaN
## namecapri ii                                              NaN      NaN
## namechevroelt chevelle malibu                             NaN      NaN
## namechevrolet bel air                                     NaN      NaN
## namechevrolet camaro                                      NaN      NaN
## namechevrolet caprice classic                             NaN      NaN
## namechevrolet cavalier                                    NaN      NaN
## namechevrolet cavalier 2-door                             NaN      NaN
## namechevrolet cavalier wagon                              NaN      NaN
## namechevrolet chevelle concours (sw)                      NaN      NaN
## namechevrolet chevelle malibu                             NaN      NaN
## namechevrolet chevelle malibu classic                     NaN      NaN
## namechevrolet chevette                                    NaN      NaN
## namechevrolet citation                                    NaN      NaN
## namechevrolet concours                                    NaN      NaN
## namechevrolet impala                                      NaN      NaN
## namechevrolet malibu                                      NaN      NaN
## namechevrolet malibu classic (sw)                         NaN      NaN
## namechevrolet monte carlo                                 NaN      NaN
## namechevrolet monte carlo landau                          NaN      NaN
## namechevrolet monte carlo s                               NaN      NaN
## namechevrolet monza 2+2                                   NaN      NaN
## namechevrolet nova                                        NaN      NaN
## namechevrolet nova custom                                 NaN      NaN
## namechevrolet vega                                        NaN      NaN
## namechevrolet vega (sw)                                   NaN      NaN
## namechevrolet vega 2300                                   NaN      NaN
## namechevrolet woody                                       NaN      NaN
## namechevy c10                                             NaN      NaN
## namechevy c20                                             NaN      NaN
## namechevy s-10                                            NaN      NaN
## namechrysler cordoba                                      NaN      NaN
## namechrysler lebaron medallion                            NaN      NaN
## namechrysler lebaron salon                                NaN      NaN
## namechrysler lebaron town @ country (sw)                  NaN      NaN
## namechrysler new yorker brougham                          NaN      NaN
## namechrysler newport royal                                NaN      NaN
## namedatsun 1200                                           NaN      NaN
## namedatsun 200-sx                                         NaN      NaN
## namedatsun 200sx                                          NaN      NaN
## namedatsun 210                                            NaN      NaN
## namedatsun 210 mpg                                        NaN      NaN
## namedatsun 280-zx                                         NaN      NaN
## namedatsun 310                                            NaN      NaN
## namedatsun 310 gx                                         NaN      NaN
## namedatsun 510                                            NaN      NaN
## namedatsun 510 (sw)                                       NaN      NaN
## namedatsun 510 hatchback                                  NaN      NaN
## namedatsun 610                                            NaN      NaN
## namedatsun 710                                            NaN      NaN
## namedatsun 810                                            NaN      NaN
## namedatsun 810 maxima                                     NaN      NaN
## namedatsun b-210                                          NaN      NaN
## namedatsun b210                                           NaN      NaN
## namedatsun b210 gx                                        NaN      NaN
## namedatsun f-10 hatchback                                 NaN      NaN
## namedatsun pl510                                          NaN      NaN
## namedodge aries se                                        NaN      NaN
## namedodge aries wagon (sw)                                NaN      NaN
## namedodge aspen                                           NaN      NaN
## namedodge aspen 6                                         NaN      NaN
## namedodge aspen se                                        NaN      NaN
## namedodge challenger se                                   NaN      NaN
## namedodge charger 2.2                                     NaN      NaN
## namedodge colt                                            NaN      NaN
## namedodge colt (sw)                                       NaN      NaN
## namedodge colt hardtop                                    NaN      NaN
## namedodge colt hatchback custom                           NaN      NaN
## namedodge colt m/m                                        NaN      NaN
## namedodge coronet brougham                                NaN      NaN
## namedodge coronet custom                                  NaN      NaN
## namedodge coronet custom (sw)                             NaN      NaN
## namedodge d100                                            NaN      NaN
## namedodge d200                                            NaN      NaN
## namedodge dart custom                                     NaN      NaN
## namedodge diplomat                                        NaN      NaN
## namedodge magnum xe                                       NaN      NaN
## namedodge monaco (sw)                                     NaN      NaN
## namedodge monaco brougham                                 NaN      NaN
## namedodge omni                                            NaN      NaN
## namedodge rampage                                         NaN      NaN
## namedodge st. regis                                       NaN      NaN
## namefiat 124 sport coupe                                  NaN      NaN
## namefiat 124 tc                                           NaN      NaN
## namefiat 124b                                             NaN      NaN
## namefiat 128                                              NaN      NaN
## namefiat 131                                              NaN      NaN
## namefiat strada custom                                    NaN      NaN
## namefiat x1.9                                             NaN      NaN
## nameford country                                          NaN      NaN
## nameford country squire (sw)                              NaN      NaN
## nameford escort 2h                                        NaN      NaN
## nameford escort 4w                                        NaN      NaN
## nameford f108                                             NaN      NaN
## nameford f250                                             NaN      NaN
## nameford fairmont                                         NaN      NaN
## nameford fairmont (auto)                                  NaN      NaN
## nameford fairmont (man)                                   NaN      NaN
## nameford fairmont 4                                       NaN      NaN
## nameford fairmont futura                                  NaN      NaN
## nameford fiesta                                           NaN      NaN
## nameford futura                                           NaN      NaN
## nameford galaxie 500                                      NaN      NaN
## nameford gran torino                                      NaN      NaN
## nameford gran torino (sw)                                 NaN      NaN
## nameford granada                                          NaN      NaN
## nameford granada ghia                                     NaN      NaN
## nameford granada gl                                       NaN      NaN
## nameford granada l                                        NaN      NaN
## nameford ltd                                              NaN      NaN
## nameford ltd landau                                       NaN      NaN
## nameford maverick                                         NaN      NaN
## nameford mustang                                          NaN      NaN
## nameford mustang gl                                       NaN      NaN
## nameford mustang ii                                       NaN      NaN
## nameford mustang ii 2+2                                   NaN      NaN
## nameford pinto                                            NaN      NaN
## nameford pinto (sw)                                       NaN      NaN
## nameford pinto runabout                                   NaN      NaN
## nameford ranger                                           NaN      NaN
## nameford thunderbird                                      NaN      NaN
## nameford torino                                           NaN      NaN
## nameford torino 500                                       NaN      NaN
## namehi 1200d                                              NaN      NaN
## namehonda accord                                          NaN      NaN
## namehonda accord cvcc                                     NaN      NaN
## namehonda accord lx                                       NaN      NaN
## namehonda civic                                           NaN      NaN
## namehonda civic (auto)                                    NaN      NaN
## namehonda civic 1300                                      NaN      NaN
## namehonda civic 1500 gl                                   NaN      NaN
## namehonda civic cvcc                                      NaN      NaN
## namehonda prelude                                         NaN      NaN
## namemaxda glc deluxe                                      NaN      NaN
## namemaxda rx3                                             NaN      NaN
## namemazda 626                                             NaN      NaN
## namemazda glc                                             NaN      NaN
## namemazda glc 4                                           NaN      NaN
## namemazda glc custom                                      NaN      NaN
## namemazda glc custom l                                    NaN      NaN
## namemazda glc deluxe                                      NaN      NaN
## namemazda rx-4                                            NaN      NaN
## namemazda rx-7 gs                                         NaN      NaN
## namemazda rx2 coupe                                       NaN      NaN
## namemercedes benz 300d                                    NaN      NaN
## namemercedes-benz 240d                                    NaN      NaN
## namemercedes-benz 280s                                    NaN      NaN
## namemercury capri 2000                                    NaN      NaN
## namemercury capri v6                                      NaN      NaN
## namemercury cougar brougham                               NaN      NaN
## namemercury grand marquis                                 NaN      NaN
## namemercury lynx l                                        NaN      NaN
## namemercury marquis                                       NaN      NaN
## namemercury marquis brougham                              NaN      NaN
## namemercury monarch                                       NaN      NaN
## namemercury monarch ghia                                  NaN      NaN
## namemercury zephyr                                        NaN      NaN
## namemercury zephyr 6                                      NaN      NaN
## namenissan stanza xe                                      NaN      NaN
## nameoldsmobile cutlass ciera (diesel)                     NaN      NaN
## nameoldsmobile cutlass ls                                 NaN      NaN
## nameoldsmobile cutlass salon brougham                     NaN      NaN
## nameoldsmobile cutlass supreme                            NaN      NaN
## nameoldsmobile delta 88 royale                            NaN      NaN
## nameoldsmobile omega                                      NaN      NaN
## nameoldsmobile omega brougham                             NaN      NaN
## nameoldsmobile starfire sx                                NaN      NaN
## nameoldsmobile vista cruiser                              NaN      NaN
## nameopel 1900                                             NaN      NaN
## nameopel manta                                            NaN      NaN
## namepeugeot 304                                           NaN      NaN
## namepeugeot 504                                           NaN      NaN
## namepeugeot 504 (sw)                                      NaN      NaN
## namepeugeot 505s turbo diesel                             NaN      NaN
## namepeugeot 604sl                                         NaN      NaN
## nameplymouth 'cuda 340                                    NaN      NaN
## nameplymouth arrow gs                                     NaN      NaN
## nameplymouth champ                                        NaN      NaN
## nameplymouth cricket                                      NaN      NaN
## nameplymouth custom suburb                                NaN      NaN
## nameplymouth duster                                       NaN      NaN
## nameplymouth fury                                         NaN      NaN
## nameplymouth fury gran sedan                              NaN      NaN
## nameplymouth fury iii                                     NaN      NaN
## nameplymouth grand fury                                   NaN      NaN
## nameplymouth horizon                                      NaN      NaN
## nameplymouth horizon 4                                    NaN      NaN
## nameplymouth horizon miser                                NaN      NaN
## nameplymouth horizon tc3                                  NaN      NaN
## nameplymouth reliant                                      NaN      NaN
## nameplymouth sapporo                                      NaN      NaN
## nameplymouth satellite                                    NaN      NaN
## nameplymouth satellite custom                             NaN      NaN
## nameplymouth satellite custom (sw)                        NaN      NaN
## nameplymouth satellite sebring                            NaN      NaN
## nameplymouth valiant                                      NaN      NaN
## nameplymouth valiant custom                               NaN      NaN
## nameplymouth volare                                       NaN      NaN
## nameplymouth volare custom                                NaN      NaN
## nameplymouth volare premier v8                            NaN      NaN
## namepontiac astro                                         NaN      NaN
## namepontiac catalina                                      NaN      NaN
## namepontiac catalina brougham                             NaN      NaN
## namepontiac firebird                                      NaN      NaN
## namepontiac grand prix                                    NaN      NaN
## namepontiac grand prix lj                                 NaN      NaN
## namepontiac j2000 se hatchback                            NaN      NaN
## namepontiac lemans v6                                     NaN      NaN
## namepontiac phoenix                                       NaN      NaN
## namepontiac phoenix lj                                    NaN      NaN
## namepontiac safari (sw)                                   NaN      NaN
## namepontiac sunbird coupe                                 NaN      NaN
## namepontiac ventura sj                                    NaN      NaN
## namerenault 12 (sw)                                       NaN      NaN
## namerenault 12tl                                          NaN      NaN
## namerenault 5 gtl                                         NaN      NaN
## namesaab 99e                                              NaN      NaN
## namesaab 99gle                                            NaN      NaN
## namesaab 99le                                             NaN      NaN
## namesubaru                                                NaN      NaN
## namesubaru dl                                             NaN      NaN
## nametoyota carina                                         NaN      NaN
## nametoyota celica gt                                      NaN      NaN
## nametoyota celica gt liftback                             NaN      NaN
## nametoyota corolla                                        NaN      NaN
## nametoyota corolla 1200                                   NaN      NaN
## nametoyota corolla 1600 (sw)                              NaN      NaN
## nametoyota corolla liftback                               NaN      NaN
## nametoyota corolla tercel                                 NaN      NaN
## nametoyota corona                                         NaN      NaN
## nametoyota corona hardtop                                 NaN      NaN
## nametoyota corona liftback                                NaN      NaN
## nametoyota corona mark ii                                 NaN      NaN
## nametoyota cressida                                       NaN      NaN
## nametoyota mark ii                                        NaN      NaN
## nametoyota starlet                                        NaN      NaN
## nametoyota tercel                                         NaN      NaN
## nametoyouta corona mark ii (sw)                           NaN      NaN
## nametriumph tr7 coupe                                     NaN      NaN
## namevokswagen rabbit                                      NaN      NaN
## namevolkswagen 1131 deluxe sedan                          NaN      NaN
## namevolkswagen 411 (sw)                                   NaN      NaN
## namevolkswagen dasher                                     NaN      NaN
## namevolkswagen jetta                                      NaN      NaN
## namevolkswagen model 111                                  NaN      NaN
## namevolkswagen rabbit                                     NaN      NaN
## namevolkswagen rabbit custom                              NaN      NaN
## namevolkswagen rabbit custom diesel                       NaN      NaN
## namevolkswagen rabbit l                                   NaN      NaN
## namevolkswagen scirocco                                   NaN      NaN
## namevolkswagen super beetle                               NaN      NaN
## namevolkswagen type 3                                     NaN      NaN
## namevolvo 144ea                                           NaN      NaN
## namevolvo 145e (sw)                                       NaN      NaN
## namevolvo 244dl                                           NaN      NaN
## namevolvo 245                                             NaN      NaN
## namevolvo 264gl                                           NaN      NaN
## namevolvo diesel                                          NaN      NaN
## namevw dasher (diesel)                                    NaN      NaN
## namevw pickup                                             NaN      NaN
## namevw rabbit                                             NaN      NaN
## namevw rabbit c (diesel)                                  NaN      NaN
## namevw rabbit custom                                       NA       NA
## cylinders:displacement                                    NaN      NaN
## cylinders:horsepower                                      NaN      NaN
## cylinders:weight                                          NaN      NaN
## cylinders:acceleration                                    NaN      NaN
## cylinders:year                                            NaN      NaN
## cylinders:origin                                           NA       NA
## cylinders:nameamc ambassador dpl                           NA       NA
## cylinders:nameamc ambassador sst                           NA       NA
## cylinders:nameamc concord                                 NaN      NaN
## cylinders:nameamc concord d/l                              NA       NA
## cylinders:nameamc concord dl 6                             NA       NA
## cylinders:nameamc gremlin                                  NA       NA
## cylinders:nameamc hornet                                   NA       NA
## cylinders:nameamc hornet sportabout (sw)                   NA       NA
## cylinders:nameamc matador                                 NaN      NaN
## cylinders:nameamc matador (sw)                             NA       NA
## cylinders:nameamc pacer                                    NA       NA
## cylinders:nameamc pacer d/l                                NA       NA
## cylinders:nameamc rebel sst                                NA       NA
## cylinders:nameamc spirit dl                                NA       NA
## cylinders:nameaudi 100 ls                                  NA       NA
## cylinders:nameaudi 100ls                                   NA       NA
## cylinders:nameaudi 4000                                    NA       NA
## cylinders:nameaudi 5000                                    NA       NA
## cylinders:nameaudi 5000s (diesel)                          NA       NA
## cylinders:nameaudi fox                                     NA       NA
## cylinders:namebmw 2002                                     NA       NA
## cylinders:namebmw 320i                                     NA       NA
## cylinders:namebuick century                                NA       NA
## cylinders:namebuick century 350                            NA       NA
## cylinders:namebuick century limited                        NA       NA
## cylinders:namebuick century luxus (sw)                     NA       NA
## cylinders:namebuick century special                        NA       NA
## cylinders:namebuick electra 225 custom                     NA       NA
## cylinders:namebuick estate wagon (sw)                      NA       NA
## cylinders:namebuick lesabre custom                         NA       NA
## cylinders:namebuick opel isuzu deluxe                      NA       NA
## cylinders:namebuick regal sport coupe (turbo)              NA       NA
## cylinders:namebuick skyhawk                                NA       NA
## cylinders:namebuick skylark                               NaN      NaN
## cylinders:namebuick skylark 320                            NA       NA
## cylinders:namebuick skylark limited                        NA       NA
## cylinders:namecadillac eldorado                            NA       NA
## cylinders:namecadillac seville                             NA       NA
## cylinders:namecapri ii                                     NA       NA
## cylinders:namechevroelt chevelle malibu                    NA       NA
## cylinders:namechevrolet bel air                            NA       NA
## cylinders:namechevrolet camaro                             NA       NA
## cylinders:namechevrolet caprice classic                    NA       NA
## cylinders:namechevrolet cavalier                           NA       NA
## cylinders:namechevrolet cavalier 2-door                    NA       NA
## cylinders:namechevrolet cavalier wagon                     NA       NA
## cylinders:namechevrolet chevelle concours (sw)             NA       NA
## cylinders:namechevrolet chevelle malibu                   NaN      NaN
## cylinders:namechevrolet chevelle malibu classic           NaN      NaN
## cylinders:namechevrolet chevette                           NA       NA
## cylinders:namechevrolet citation                          NaN      NaN
## cylinders:namechevrolet concours                           NA       NA
## cylinders:namechevrolet impala                             NA       NA
## cylinders:namechevrolet malibu                            NaN      NaN
## cylinders:namechevrolet malibu classic (sw)                NA       NA
## cylinders:namechevrolet monte carlo                        NA       NA
## cylinders:namechevrolet monte carlo landau                 NA       NA
## cylinders:namechevrolet monte carlo s                      NA       NA
## cylinders:namechevrolet monza 2+2                          NA       NA
## cylinders:namechevrolet nova                               NA       NA
## cylinders:namechevrolet nova custom                        NA       NA
## cylinders:namechevrolet vega                               NA       NA
## cylinders:namechevrolet vega (sw)                          NA       NA
## cylinders:namechevrolet vega 2300                          NA       NA
## cylinders:namechevrolet woody                              NA       NA
## cylinders:namechevy c10                                    NA       NA
## cylinders:namechevy c20                                    NA       NA
## cylinders:namechevy s-10                                   NA       NA
## cylinders:namechrysler cordoba                             NA       NA
## cylinders:namechrysler lebaron medallion                   NA       NA
## cylinders:namechrysler lebaron salon                       NA       NA
## cylinders:namechrysler lebaron town @ country (sw)         NA       NA
## cylinders:namechrysler new yorker brougham                 NA       NA
## cylinders:namechrysler newport royal                       NA       NA
## cylinders:namedatsun 1200                                  NA       NA
## cylinders:namedatsun 200-sx                                NA       NA
## cylinders:namedatsun 200sx                                 NA       NA
## cylinders:namedatsun 210                                   NA       NA
## cylinders:namedatsun 210 mpg                               NA       NA
## cylinders:namedatsun 280-zx                                NA       NA
## cylinders:namedatsun 310                                   NA       NA
## cylinders:namedatsun 310 gx                                NA       NA
## cylinders:namedatsun 510                                   NA       NA
## cylinders:namedatsun 510 (sw)                              NA       NA
## cylinders:namedatsun 510 hatchback                         NA       NA
## cylinders:namedatsun 610                                   NA       NA
## cylinders:namedatsun 710                                   NA       NA
## cylinders:namedatsun 810                                   NA       NA
## cylinders:namedatsun 810 maxima                            NA       NA
## cylinders:namedatsun b-210                                 NA       NA
## cylinders:namedatsun b210                                  NA       NA
## cylinders:namedatsun b210 gx                               NA       NA
## cylinders:namedatsun f-10 hatchback                        NA       NA
## cylinders:namedatsun pl510                                 NA       NA
## cylinders:namedodge aries se                               NA       NA
## cylinders:namedodge aries wagon (sw)                       NA       NA
## cylinders:namedodge aspen                                  NA       NA
## cylinders:namedodge aspen 6                                NA       NA
## cylinders:namedodge aspen se                               NA       NA
## cylinders:namedodge challenger se                          NA       NA
## cylinders:namedodge charger 2.2                            NA       NA
## cylinders:namedodge colt                                   NA       NA
## cylinders:namedodge colt (sw)                              NA       NA
## cylinders:namedodge colt hardtop                           NA       NA
## cylinders:namedodge colt hatchback custom                  NA       NA
## cylinders:namedodge colt m/m                               NA       NA
## cylinders:namedodge coronet brougham                       NA       NA
## cylinders:namedodge coronet custom                         NA       NA
## cylinders:namedodge coronet custom (sw)                    NA       NA
## cylinders:namedodge d100                                   NA       NA
## cylinders:namedodge d200                                   NA       NA
## cylinders:namedodge dart custom                            NA       NA
## cylinders:namedodge diplomat                               NA       NA
## cylinders:namedodge magnum xe                              NA       NA
## cylinders:namedodge monaco (sw)                            NA       NA
## cylinders:namedodge monaco brougham                        NA       NA
## cylinders:namedodge omni                                   NA       NA
## cylinders:namedodge rampage                                NA       NA
## cylinders:namedodge st. regis                              NA       NA
## cylinders:namefiat 124 sport coupe                         NA       NA
## cylinders:namefiat 124 tc                                  NA       NA
## cylinders:namefiat 124b                                    NA       NA
## cylinders:namefiat 128                                     NA       NA
## cylinders:namefiat 131                                     NA       NA
## cylinders:namefiat strada custom                           NA       NA
## cylinders:namefiat x1.9                                    NA       NA
## cylinders:nameford country                                 NA       NA
## cylinders:nameford country squire (sw)                     NA       NA
## cylinders:nameford escort 2h                               NA       NA
## cylinders:nameford escort 4w                               NA       NA
## cylinders:nameford f108                                    NA       NA
## cylinders:nameford f250                                    NA       NA
## cylinders:nameford fairmont                                NA       NA
## cylinders:nameford fairmont (auto)                         NA       NA
## cylinders:nameford fairmont (man)                          NA       NA
## cylinders:nameford fairmont 4                              NA       NA
## cylinders:nameford fairmont futura                         NA       NA
## cylinders:nameford fiesta                                  NA       NA
## cylinders:nameford futura                                  NA       NA
## cylinders:nameford galaxie 500                             NA       NA
## cylinders:nameford gran torino                             NA       NA
## cylinders:nameford gran torino (sw)                        NA       NA
## cylinders:nameford granada                                 NA       NA
## cylinders:nameford granada ghia                            NA       NA
## cylinders:nameford granada gl                              NA       NA
## cylinders:nameford granada l                               NA       NA
## cylinders:nameford ltd                                     NA       NA
## cylinders:nameford ltd landau                              NA       NA
## cylinders:nameford maverick                                NA       NA
## cylinders:nameford mustang                                 NA       NA
## cylinders:nameford mustang gl                              NA       NA
## cylinders:nameford mustang ii                              NA       NA
## cylinders:nameford mustang ii 2+2                          NA       NA
## cylinders:nameford pinto                                   NA       NA
## cylinders:nameford pinto (sw)                              NA       NA
## cylinders:nameford pinto runabout                          NA       NA
## cylinders:nameford ranger                                  NA       NA
## cylinders:nameford thunderbird                             NA       NA
## cylinders:nameford torino                                  NA       NA
## cylinders:nameford torino 500                              NA       NA
## cylinders:namehi 1200d                                     NA       NA
## cylinders:namehonda accord                                 NA       NA
## cylinders:namehonda accord cvcc                            NA       NA
## cylinders:namehonda accord lx                              NA       NA
## cylinders:namehonda civic                                  NA       NA
## cylinders:namehonda civic (auto)                           NA       NA
## cylinders:namehonda civic 1300                             NA       NA
## cylinders:namehonda civic 1500 gl                          NA       NA
## cylinders:namehonda civic cvcc                             NA       NA
## cylinders:namehonda prelude                                NA       NA
## cylinders:namemaxda glc deluxe                             NA       NA
## cylinders:namemaxda rx3                                    NA       NA
## cylinders:namemazda 626                                    NA       NA
## cylinders:namemazda glc                                    NA       NA
## cylinders:namemazda glc 4                                  NA       NA
## cylinders:namemazda glc custom                             NA       NA
## cylinders:namemazda glc custom l                           NA       NA
## cylinders:namemazda glc deluxe                             NA       NA
## cylinders:namemazda rx-4                                   NA       NA
## cylinders:namemazda rx-7 gs                                NA       NA
## cylinders:namemazda rx2 coupe                              NA       NA
## cylinders:namemercedes benz 300d                           NA       NA
## cylinders:namemercedes-benz 240d                           NA       NA
## cylinders:namemercedes-benz 280s                           NA       NA
## cylinders:namemercury capri 2000                           NA       NA
## cylinders:namemercury capri v6                             NA       NA
## cylinders:namemercury cougar brougham                      NA       NA
## cylinders:namemercury grand marquis                        NA       NA
## cylinders:namemercury lynx l                               NA       NA
## cylinders:namemercury marquis                              NA       NA
## cylinders:namemercury marquis brougham                     NA       NA
## cylinders:namemercury monarch                              NA       NA
## cylinders:namemercury monarch ghia                         NA       NA
## cylinders:namemercury zephyr                               NA       NA
## cylinders:namemercury zephyr 6                             NA       NA
## cylinders:namenissan stanza xe                             NA       NA
## cylinders:nameoldsmobile cutlass ciera (diesel)            NA       NA
## cylinders:nameoldsmobile cutlass ls                        NA       NA
## cylinders:nameoldsmobile cutlass salon brougham            NA       NA
## cylinders:nameoldsmobile cutlass supreme                   NA       NA
## cylinders:nameoldsmobile delta 88 royale                   NA       NA
## cylinders:nameoldsmobile omega                             NA       NA
## cylinders:nameoldsmobile omega brougham                    NA       NA
## cylinders:nameoldsmobile starfire sx                       NA       NA
## cylinders:nameoldsmobile vista cruiser                     NA       NA
## cylinders:nameopel 1900                                    NA       NA
## cylinders:nameopel manta                                   NA       NA
## cylinders:namepeugeot 304                                  NA       NA
## cylinders:namepeugeot 504                                  NA       NA
## cylinders:namepeugeot 504 (sw)                             NA       NA
## cylinders:namepeugeot 505s turbo diesel                    NA       NA
## cylinders:namepeugeot 604sl                                NA       NA
## cylinders:nameplymouth 'cuda 340                           NA       NA
## cylinders:nameplymouth arrow gs                            NA       NA
## cylinders:nameplymouth champ                               NA       NA
## cylinders:nameplymouth cricket                             NA       NA
## cylinders:nameplymouth custom suburb                       NA       NA
## cylinders:nameplymouth duster                              NA       NA
## cylinders:nameplymouth fury                                NA       NA
## cylinders:nameplymouth fury gran sedan                     NA       NA
## cylinders:nameplymouth fury iii                            NA       NA
## cylinders:nameplymouth grand fury                          NA       NA
## cylinders:nameplymouth horizon                             NA       NA
## cylinders:nameplymouth horizon 4                           NA       NA
## cylinders:nameplymouth horizon miser                       NA       NA
## cylinders:nameplymouth horizon tc3                         NA       NA
## cylinders:nameplymouth reliant                             NA       NA
## cylinders:nameplymouth sapporo                             NA       NA
## cylinders:nameplymouth satellite                           NA       NA
## cylinders:nameplymouth satellite custom                    NA       NA
## cylinders:nameplymouth satellite custom (sw)               NA       NA
## cylinders:nameplymouth satellite sebring                   NA       NA
## cylinders:nameplymouth valiant                             NA       NA
## cylinders:nameplymouth valiant custom                      NA       NA
## cylinders:nameplymouth volare                              NA       NA
## cylinders:nameplymouth volare custom                       NA       NA
## cylinders:nameplymouth volare premier v8                   NA       NA
## cylinders:namepontiac astro                                NA       NA
## cylinders:namepontiac catalina                             NA       NA
## cylinders:namepontiac catalina brougham                    NA       NA
## cylinders:namepontiac firebird                             NA       NA
## cylinders:namepontiac grand prix                           NA       NA
## cylinders:namepontiac grand prix lj                        NA       NA
## cylinders:namepontiac j2000 se hatchback                   NA       NA
## cylinders:namepontiac lemans v6                            NA       NA
## cylinders:namepontiac phoenix                              NA       NA
## cylinders:namepontiac phoenix lj                           NA       NA
## cylinders:namepontiac safari (sw)                          NA       NA
## cylinders:namepontiac sunbird coupe                        NA       NA
## cylinders:namepontiac ventura sj                           NA       NA
## cylinders:namerenault 12 (sw)                              NA       NA
## cylinders:namerenault 12tl                                 NA       NA
## cylinders:namerenault 5 gtl                                NA       NA
## cylinders:namesaab 99e                                     NA       NA
## cylinders:namesaab 99gle                                   NA       NA
## cylinders:namesaab 99le                                    NA       NA
## cylinders:namesubaru                                       NA       NA
## cylinders:namesubaru dl                                    NA       NA
## cylinders:nametoyota carina                                NA       NA
## cylinders:nametoyota celica gt                             NA       NA
## cylinders:nametoyota celica gt liftback                    NA       NA
## cylinders:nametoyota corolla                               NA       NA
## cylinders:nametoyota corolla 1200                          NA       NA
## cylinders:nametoyota corolla 1600 (sw)                     NA       NA
## cylinders:nametoyota corolla liftback                      NA       NA
## cylinders:nametoyota corolla tercel                        NA       NA
## cylinders:nametoyota corona                                NA       NA
## cylinders:nametoyota corona hardtop                        NA       NA
## cylinders:nametoyota corona liftback                       NA       NA
## cylinders:nametoyota corona mark ii                        NA       NA
## cylinders:nametoyota cressida                              NA       NA
## cylinders:nametoyota mark ii                               NA       NA
## cylinders:nametoyota starlet                               NA       NA
## cylinders:nametoyota tercel                                NA       NA
## cylinders:nametoyouta corona mark ii (sw)                  NA       NA
## cylinders:nametriumph tr7 coupe                            NA       NA
## cylinders:namevokswagen rabbit                             NA       NA
## cylinders:namevolkswagen 1131 deluxe sedan                 NA       NA
## cylinders:namevolkswagen 411 (sw)                          NA       NA
## cylinders:namevolkswagen dasher                            NA       NA
## cylinders:namevolkswagen jetta                             NA       NA
## cylinders:namevolkswagen model 111                         NA       NA
## cylinders:namevolkswagen rabbit                            NA       NA
## cylinders:namevolkswagen rabbit custom                     NA       NA
## cylinders:namevolkswagen rabbit custom diesel              NA       NA
## cylinders:namevolkswagen rabbit l                          NA       NA
## cylinders:namevolkswagen scirocco                          NA       NA
## cylinders:namevolkswagen super beetle                      NA       NA
## cylinders:namevolkswagen type 3                            NA       NA
## cylinders:namevolvo 144ea                                  NA       NA
## cylinders:namevolvo 145e (sw)                              NA       NA
## cylinders:namevolvo 244dl                                  NA       NA
## cylinders:namevolvo 245                                    NA       NA
## cylinders:namevolvo 264gl                                  NA       NA
## cylinders:namevolvo diesel                                 NA       NA
## cylinders:namevw dasher (diesel)                           NA       NA
## cylinders:namevw pickup                                    NA       NA
## cylinders:namevw rabbit                                    NA       NA
## cylinders:namevw rabbit c (diesel)                         NA       NA
## cylinders:namevw rabbit custom                             NA       NA
## displacement:horsepower                                   NaN      NaN
## displacement:weight                                       NaN      NaN
## displacement:acceleration                                 NaN      NaN
## displacement:year                                         NaN      NaN
## displacement:origin                                       NaN      NaN
## displacement:nameamc ambassador dpl                        NA       NA
## displacement:nameamc ambassador sst                        NA       NA
## displacement:nameamc concord                               NA       NA
## displacement:nameamc concord d/l                           NA       NA
## displacement:nameamc concord dl 6                          NA       NA
## displacement:nameamc gremlin                              NaN      NaN
## displacement:nameamc hornet                               NaN      NaN
## displacement:nameamc hornet sportabout (sw)                NA       NA
## displacement:nameamc matador                              NaN      NaN
## displacement:nameamc matador (sw)                          NA       NA
## displacement:nameamc pacer                                 NA       NA
## displacement:nameamc pacer d/l                             NA       NA
## displacement:nameamc rebel sst                             NA       NA
## displacement:nameamc spirit dl                             NA       NA
## displacement:nameaudi 100 ls                               NA       NA
## displacement:nameaudi 100ls                               NaN      NaN
## displacement:nameaudi 4000                                 NA       NA
## displacement:nameaudi 5000                                 NA       NA
## displacement:nameaudi 5000s (diesel)                       NA       NA
## displacement:nameaudi fox                                  NA       NA
## displacement:namebmw 2002                                  NA       NA
## displacement:namebmw 320i                                  NA       NA
## displacement:namebuick century                             NA       NA
## displacement:namebuick century 350                         NA       NA
## displacement:namebuick century limited                     NA       NA
## displacement:namebuick century luxus (sw)                  NA       NA
## displacement:namebuick century special                     NA       NA
## displacement:namebuick electra 225 custom                  NA       NA
## displacement:namebuick estate wagon (sw)                  NaN      NaN
## displacement:namebuick lesabre custom                      NA       NA
## displacement:namebuick opel isuzu deluxe                   NA       NA
## displacement:namebuick regal sport coupe (turbo)           NA       NA
## displacement:namebuick skyhawk                             NA       NA
## displacement:namebuick skylark                             NA       NA
## displacement:namebuick skylark 320                         NA       NA
## displacement:namebuick skylark limited                     NA       NA
## displacement:namecadillac eldorado                         NA       NA
## displacement:namecadillac seville                          NA       NA
## displacement:namecapri ii                                  NA       NA
## displacement:namechevroelt chevelle malibu                 NA       NA
## displacement:namechevrolet bel air                         NA       NA
## displacement:namechevrolet camaro                          NA       NA
## displacement:namechevrolet caprice classic                NaN      NaN
## displacement:namechevrolet cavalier                        NA       NA
## displacement:namechevrolet cavalier 2-door                 NA       NA
## displacement:namechevrolet cavalier wagon                  NA       NA
## displacement:namechevrolet chevelle concours (sw)          NA       NA
## displacement:namechevrolet chevelle malibu                 NA       NA
## displacement:namechevrolet chevelle malibu classic         NA       NA
## displacement:namechevrolet chevette                       NaN      NaN
## displacement:namechevrolet citation                        NA       NA
## displacement:namechevrolet concours                        NA       NA
## displacement:namechevrolet impala                         NaN      NaN
## displacement:namechevrolet malibu                          NA       NA
## displacement:namechevrolet malibu classic (sw)             NA       NA
## displacement:namechevrolet monte carlo                     NA       NA
## displacement:namechevrolet monte carlo landau             NaN      NaN
## displacement:namechevrolet monte carlo s                   NA       NA
## displacement:namechevrolet monza 2+2                       NA       NA
## displacement:namechevrolet nova                            NA       NA
## displacement:namechevrolet nova custom                     NA       NA
## displacement:namechevrolet vega                            NA       NA
## displacement:namechevrolet vega (sw)                       NA       NA
## displacement:namechevrolet vega 2300                       NA       NA
## displacement:namechevrolet woody                           NA       NA
## displacement:namechevy c10                                 NA       NA
## displacement:namechevy c20                                 NA       NA
## displacement:namechevy s-10                                NA       NA
## displacement:namechrysler cordoba                          NA       NA
## displacement:namechrysler lebaron medallion                NA       NA
## displacement:namechrysler lebaron salon                    NA       NA
## displacement:namechrysler lebaron town @ country (sw)      NA       NA
## displacement:namechrysler new yorker brougham              NA       NA
## displacement:namechrysler newport royal                    NA       NA
## displacement:namedatsun 1200                               NA       NA
## displacement:namedatsun 200-sx                             NA       NA
## displacement:namedatsun 200sx                              NA       NA
## displacement:namedatsun 210                                NA       NA
## displacement:namedatsun 210 mpg                            NA       NA
## displacement:namedatsun 280-zx                             NA       NA
## displacement:namedatsun 310                                NA       NA
## displacement:namedatsun 310 gx                             NA       NA
## displacement:namedatsun 510                                NA       NA
## displacement:namedatsun 510 (sw)                           NA       NA
## displacement:namedatsun 510 hatchback                      NA       NA
## displacement:namedatsun 610                                NA       NA
## displacement:namedatsun 710                               NaN      NaN
## displacement:namedatsun 810                                NA       NA
## displacement:namedatsun 810 maxima                         NA       NA
## displacement:namedatsun b-210                              NA       NA
## displacement:namedatsun b210                               NA       NA
## displacement:namedatsun b210 gx                            NA       NA
## displacement:namedatsun f-10 hatchback                     NA       NA
## displacement:namedatsun pl510                              NA       NA
## displacement:namedodge aries se                            NA       NA
## displacement:namedodge aries wagon (sw)                    NA       NA
## displacement:namedodge aspen                               NA       NA
## displacement:namedodge aspen 6                             NA       NA
## displacement:namedodge aspen se                            NA       NA
## displacement:namedodge challenger se                       NA       NA
## displacement:namedodge charger 2.2                         NA       NA
## displacement:namedodge colt                               NaN      NaN
## displacement:namedodge colt (sw)                           NA       NA
## displacement:namedodge colt hardtop                        NA       NA
## displacement:namedodge colt hatchback custom               NA       NA
## displacement:namedodge colt m/m                            NA       NA
## displacement:namedodge coronet brougham                    NA       NA
## displacement:namedodge coronet custom                      NA       NA
## displacement:namedodge coronet custom (sw)                 NA       NA
## displacement:namedodge d100                                NA       NA
## displacement:namedodge d200                                NA       NA
## displacement:namedodge dart custom                         NA       NA
## displacement:namedodge diplomat                            NA       NA
## displacement:namedodge magnum xe                           NA       NA
## displacement:namedodge monaco (sw)                         NA       NA
## displacement:namedodge monaco brougham                     NA       NA
## displacement:namedodge omni                                NA       NA
## displacement:namedodge rampage                             NA       NA
## displacement:namedodge st. regis                           NA       NA
## displacement:namefiat 124 sport coupe                      NA       NA
## displacement:namefiat 124 tc                               NA       NA
## displacement:namefiat 124b                                 NA       NA
## displacement:namefiat 128                                 NaN      NaN
## displacement:namefiat 131                                  NA       NA
## displacement:namefiat strada custom                        NA       NA
## displacement:namefiat x1.9                                 NA       NA
## displacement:nameford country                              NA       NA
## displacement:nameford country squire (sw)                 NaN      NaN
## displacement:nameford escort 2h                            NA       NA
## displacement:nameford escort 4w                            NA       NA
## displacement:nameford f108                                 NA       NA
## displacement:nameford f250                                 NA       NA
## displacement:nameford fairmont                             NA       NA
## displacement:nameford fairmont (auto)                      NA       NA
## displacement:nameford fairmont (man)                       NA       NA
## displacement:nameford fairmont 4                           NA       NA
## displacement:nameford fairmont futura                      NA       NA
## displacement:nameford fiesta                               NA       NA
## displacement:nameford futura                               NA       NA
## displacement:nameford galaxie 500                         NaN      NaN
## displacement:nameford gran torino                         NaN      NaN
## displacement:nameford gran torino (sw)                     NA       NA
## displacement:nameford granada                              NA       NA
## displacement:nameford granada ghia                         NA       NA
## displacement:nameford granada gl                           NA       NA
## displacement:nameford granada l                            NA       NA
## displacement:nameford ltd                                  NA       NA
## displacement:nameford ltd landau                           NA       NA
## displacement:nameford maverick                            NaN      NaN
## displacement:nameford mustang                              NA       NA
## displacement:nameford mustang gl                           NA       NA
## displacement:nameford mustang ii                           NA       NA
## displacement:nameford mustang ii 2+2                       NA       NA
## displacement:nameford pinto                               NaN      NaN
## displacement:nameford pinto (sw)                           NA       NA
## displacement:nameford pinto runabout                       NA       NA
## displacement:nameford ranger                               NA       NA
## displacement:nameford thunderbird                          NA       NA
## displacement:nameford torino                               NA       NA
## displacement:nameford torino 500                           NA       NA
## displacement:namehi 1200d                                  NA       NA
## displacement:namehonda accord                              NA       NA
## displacement:namehonda accord cvcc                         NA       NA
## displacement:namehonda accord lx                           NA       NA
## displacement:namehonda civic                              NaN      NaN
## displacement:namehonda civic (auto)                        NA       NA
## displacement:namehonda civic 1300                          NA       NA
## displacement:namehonda civic 1500 gl                       NA       NA
## displacement:namehonda civic cvcc                          NA       NA
## displacement:namehonda prelude                             NA       NA
## displacement:namemaxda glc deluxe                          NA       NA
## displacement:namemaxda rx3                                 NA       NA
## displacement:namemazda 626                                 NA       NA
## displacement:namemazda glc                                 NA       NA
## displacement:namemazda glc 4                               NA       NA
## displacement:namemazda glc custom                          NA       NA
## displacement:namemazda glc custom l                        NA       NA
## displacement:namemazda glc deluxe                          NA       NA
## displacement:namemazda rx-4                                NA       NA
## displacement:namemazda rx-7 gs                             NA       NA
## displacement:namemazda rx2 coupe                           NA       NA
## displacement:namemercedes benz 300d                        NA       NA
## displacement:namemercedes-benz 240d                        NA       NA
## displacement:namemercedes-benz 280s                        NA       NA
## displacement:namemercury capri 2000                        NA       NA
## displacement:namemercury capri v6                          NA       NA
## displacement:namemercury cougar brougham                   NA       NA
## displacement:namemercury grand marquis                     NA       NA
## displacement:namemercury lynx l                            NA       NA
## displacement:namemercury marquis                           NA       NA
## displacement:namemercury marquis brougham                  NA       NA
## displacement:namemercury monarch                           NA       NA
## displacement:namemercury monarch ghia                      NA       NA
## displacement:namemercury zephyr                            NA       NA
## displacement:namemercury zephyr 6                          NA       NA
## displacement:namenissan stanza xe                          NA       NA
## displacement:nameoldsmobile cutlass ciera (diesel)         NA       NA
## displacement:nameoldsmobile cutlass ls                     NA       NA
## displacement:nameoldsmobile cutlass salon brougham         NA       NA
## displacement:nameoldsmobile cutlass supreme                NA       NA
## displacement:nameoldsmobile delta 88 royale                NA       NA
## displacement:nameoldsmobile omega                          NA       NA
## displacement:nameoldsmobile omega brougham                 NA       NA
## displacement:nameoldsmobile starfire sx                    NA       NA
## displacement:nameoldsmobile vista cruiser                  NA       NA
## displacement:nameopel 1900                                 NA       NA
## displacement:nameopel manta                               NaN      NaN
## displacement:namepeugeot 304                               NA       NA
## displacement:namepeugeot 504                              NaN      NaN
## displacement:namepeugeot 504 (sw)                          NA       NA
## displacement:namepeugeot 505s turbo diesel                 NA       NA
## displacement:namepeugeot 604sl                             NA       NA
## displacement:nameplymouth 'cuda 340                        NA       NA
## displacement:nameplymouth arrow gs                         NA       NA
## displacement:nameplymouth champ                            NA       NA
## displacement:nameplymouth cricket                          NA       NA
## displacement:nameplymouth custom suburb                    NA       NA
## displacement:nameplymouth duster                           NA       NA
## displacement:nameplymouth fury                             NA       NA
## displacement:nameplymouth fury gran sedan                  NA       NA
## displacement:nameplymouth fury iii                        NaN      NaN
## displacement:nameplymouth grand fury                       NA       NA
## displacement:nameplymouth horizon                          NA       NA
## displacement:nameplymouth horizon 4                        NA       NA
## displacement:nameplymouth horizon miser                    NA       NA
## displacement:nameplymouth horizon tc3                      NA       NA
## displacement:nameplymouth reliant                          NA       NA
## displacement:nameplymouth sapporo                          NA       NA
## displacement:nameplymouth satellite                        NA       NA
## displacement:nameplymouth satellite custom                 NA       NA
## displacement:nameplymouth satellite custom (sw)            NA       NA
## displacement:nameplymouth satellite sebring                NA       NA
## displacement:nameplymouth valiant                          NA       NA
## displacement:nameplymouth valiant custom                   NA       NA
## displacement:nameplymouth volare                           NA       NA
## displacement:nameplymouth volare custom                    NA       NA
## displacement:nameplymouth volare premier v8                NA       NA
## displacement:namepontiac astro                             NA       NA
## displacement:namepontiac catalina                          NA       NA
## displacement:namepontiac catalina brougham                 NA       NA
## displacement:namepontiac firebird                          NA       NA
## displacement:namepontiac grand prix                        NA       NA
## displacement:namepontiac grand prix lj                     NA       NA
## displacement:namepontiac j2000 se hatchback                NA       NA
## displacement:namepontiac lemans v6                         NA       NA
## displacement:namepontiac phoenix                           NA       NA
## displacement:namepontiac phoenix lj                        NA       NA
## displacement:namepontiac safari (sw)                       NA       NA
## displacement:namepontiac sunbird coupe                     NA       NA
## displacement:namepontiac ventura sj                        NA       NA
## displacement:namerenault 12 (sw)                           NA       NA
## displacement:namerenault 12tl                              NA       NA
## displacement:namerenault 5 gtl                             NA       NA
## displacement:namesaab 99e                                  NA       NA
## displacement:namesaab 99gle                                NA       NA
## displacement:namesaab 99le                                 NA       NA
## displacement:namesubaru                                   NaN      NaN
## displacement:namesubaru dl                                 NA       NA
## displacement:nametoyota carina                             NA       NA
## displacement:nametoyota celica gt                          NA       NA
## displacement:nametoyota celica gt liftback                 NA       NA
## displacement:nametoyota corolla                           NaN      NaN
## displacement:nametoyota corolla 1200                       NA       NA
## displacement:nametoyota corolla 1600 (sw)                  NA       NA
## displacement:nametoyota corolla liftback                   NA       NA
## displacement:nametoyota corolla tercel                     NA       NA
## displacement:nametoyota corona                             NA       NA
## displacement:nametoyota corona hardtop                     NA       NA
## displacement:nametoyota corona liftback                    NA       NA
## displacement:nametoyota corona mark ii                     NA       NA
## displacement:nametoyota cressida                           NA       NA
## displacement:nametoyota mark ii                            NA       NA
## displacement:nametoyota starlet                            NA       NA
## displacement:nametoyota tercel                             NA       NA
## displacement:nametoyouta corona mark ii (sw)               NA       NA
## displacement:nametriumph tr7 coupe                         NA       NA
## displacement:namevokswagen rabbit                          NA       NA
## displacement:namevolkswagen 1131 deluxe sedan              NA       NA
## displacement:namevolkswagen 411 (sw)                       NA       NA
## displacement:namevolkswagen dasher                        NaN      NaN
## displacement:namevolkswagen jetta                          NA       NA
## displacement:namevolkswagen model 111                      NA       NA
## displacement:namevolkswagen rabbit                        NaN      NaN
## displacement:namevolkswagen rabbit custom                  NA       NA
## displacement:namevolkswagen rabbit custom diesel           NA       NA
## displacement:namevolkswagen rabbit l                       NA       NA
## displacement:namevolkswagen scirocco                       NA       NA
## displacement:namevolkswagen super beetle                   NA       NA
## displacement:namevolkswagen type 3                         NA       NA
## displacement:namevolvo 144ea                               NA       NA
## displacement:namevolvo 145e (sw)                           NA       NA
## displacement:namevolvo 244dl                               NA       NA
## displacement:namevolvo 245                                 NA       NA
## displacement:namevolvo 264gl                               NA       NA
## displacement:namevolvo diesel                              NA       NA
## displacement:namevw dasher (diesel)                        NA       NA
## displacement:namevw pickup                                 NA       NA
## displacement:namevw rabbit                                 NA       NA
## displacement:namevw rabbit c (diesel)                      NA       NA
## displacement:namevw rabbit custom                          NA       NA
## horsepower:weight                                         NaN      NaN
## horsepower:acceleration                                   NaN      NaN
## horsepower:year                                           NaN      NaN
## horsepower:origin                                         NaN      NaN
## horsepower:nameamc ambassador dpl                          NA       NA
## horsepower:nameamc ambassador sst                          NA       NA
## horsepower:nameamc concord                                 NA       NA
## horsepower:nameamc concord d/l                             NA       NA
## horsepower:nameamc concord dl 6                            NA       NA
## horsepower:nameamc gremlin                                 NA       NA
## horsepower:nameamc hornet                                 NaN      NaN
## horsepower:nameamc hornet sportabout (sw)                  NA       NA
## horsepower:nameamc matador                                NaN      NaN
## horsepower:nameamc matador (sw)                            NA       NA
## horsepower:nameamc pacer                                   NA       NA
## horsepower:nameamc pacer d/l                               NA       NA
## horsepower:nameamc rebel sst                               NA       NA
## horsepower:nameamc spirit dl                               NA       NA
## horsepower:nameaudi 100 ls                                 NA       NA
## horsepower:nameaudi 100ls                                  NA       NA
## horsepower:nameaudi 4000                                   NA       NA
## horsepower:nameaudi 5000                                   NA       NA
## horsepower:nameaudi 5000s (diesel)                         NA       NA
## horsepower:nameaudi fox                                    NA       NA
## horsepower:namebmw 2002                                    NA       NA
## horsepower:namebmw 320i                                    NA       NA
## horsepower:namebuick century                               NA       NA
## horsepower:namebuick century 350                           NA       NA
## horsepower:namebuick century limited                       NA       NA
## horsepower:namebuick century luxus (sw)                    NA       NA
## horsepower:namebuick century special                       NA       NA
## horsepower:namebuick electra 225 custom                    NA       NA
## horsepower:namebuick estate wagon (sw)                     NA       NA
## horsepower:namebuick lesabre custom                        NA       NA
## horsepower:namebuick opel isuzu deluxe                     NA       NA
## horsepower:namebuick regal sport coupe (turbo)             NA       NA
## horsepower:namebuick skyhawk                               NA       NA
## horsepower:namebuick skylark                               NA       NA
## horsepower:namebuick skylark 320                           NA       NA
## horsepower:namebuick skylark limited                       NA       NA
## horsepower:namecadillac eldorado                           NA       NA
## horsepower:namecadillac seville                            NA       NA
## horsepower:namecapri ii                                    NA       NA
## horsepower:namechevroelt chevelle malibu                   NA       NA
## horsepower:namechevrolet bel air                           NA       NA
## horsepower:namechevrolet camaro                            NA       NA
## horsepower:namechevrolet caprice classic                  NaN      NaN
## horsepower:namechevrolet cavalier                          NA       NA
## horsepower:namechevrolet cavalier 2-door                   NA       NA
## horsepower:namechevrolet cavalier wagon                    NA       NA
## horsepower:namechevrolet chevelle concours (sw)            NA       NA
## horsepower:namechevrolet chevelle malibu                   NA       NA
## horsepower:namechevrolet chevelle malibu classic           NA       NA
## horsepower:namechevrolet chevette                         NaN      NaN
## horsepower:namechevrolet citation                         NaN      NaN
## horsepower:namechevrolet concours                          NA       NA
## horsepower:namechevrolet impala                           NaN      NaN
## horsepower:namechevrolet malibu                            NA       NA
## horsepower:namechevrolet malibu classic (sw)               NA       NA
## horsepower:namechevrolet monte carlo                       NA       NA
## horsepower:namechevrolet monte carlo landau                NA       NA
## horsepower:namechevrolet monte carlo s                     NA       NA
## horsepower:namechevrolet monza 2+2                         NA       NA
## horsepower:namechevrolet nova                             NaN      NaN
## horsepower:namechevrolet nova custom                       NA       NA
## horsepower:namechevrolet vega                             NaN      NaN
## horsepower:namechevrolet vega (sw)                         NA       NA
## horsepower:namechevrolet vega 2300                         NA       NA
## horsepower:namechevrolet woody                             NA       NA
## horsepower:namechevy c10                                   NA       NA
## horsepower:namechevy c20                                   NA       NA
## horsepower:namechevy s-10                                  NA       NA
## horsepower:namechrysler cordoba                            NA       NA
## horsepower:namechrysler lebaron medallion                  NA       NA
## horsepower:namechrysler lebaron salon                      NA       NA
## horsepower:namechrysler lebaron town @ country (sw)        NA       NA
## horsepower:namechrysler new yorker brougham                NA       NA
## horsepower:namechrysler newport royal                      NA       NA
## horsepower:namedatsun 1200                                 NA       NA
## horsepower:namedatsun 200-sx                               NA       NA
## horsepower:namedatsun 200sx                                NA       NA
## horsepower:namedatsun 210                                  NA       NA
## horsepower:namedatsun 210 mpg                              NA       NA
## horsepower:namedatsun 280-zx                               NA       NA
## horsepower:namedatsun 310                                  NA       NA
## horsepower:namedatsun 310 gx                               NA       NA
## horsepower:namedatsun 510                                  NA       NA
## horsepower:namedatsun 510 (sw)                             NA       NA
## horsepower:namedatsun 510 hatchback                        NA       NA
## horsepower:namedatsun 610                                  NA       NA
## horsepower:namedatsun 710                                  NA       NA
## horsepower:namedatsun 810                                  NA       NA
## horsepower:namedatsun 810 maxima                           NA       NA
## horsepower:namedatsun b-210                                NA       NA
## horsepower:namedatsun b210                                 NA       NA
## horsepower:namedatsun b210 gx                              NA       NA
## horsepower:namedatsun f-10 hatchback                       NA       NA
## horsepower:namedatsun pl510                                NA       NA
## horsepower:namedodge aries se                              NA       NA
## horsepower:namedodge aries wagon (sw)                      NA       NA
## horsepower:namedodge aspen                                NaN      NaN
## horsepower:namedodge aspen 6                               NA       NA
## horsepower:namedodge aspen se                              NA       NA
## horsepower:namedodge challenger se                         NA       NA
## horsepower:namedodge charger 2.2                           NA       NA
## horsepower:namedodge colt                                 NaN      NaN
## horsepower:namedodge colt (sw)                             NA       NA
## horsepower:namedodge colt hardtop                          NA       NA
## horsepower:namedodge colt hatchback custom                 NA       NA
## horsepower:namedodge colt m/m                              NA       NA
## horsepower:namedodge coronet brougham                      NA       NA
## horsepower:namedodge coronet custom                        NA       NA
## horsepower:namedodge coronet custom (sw)                   NA       NA
## horsepower:namedodge d100                                  NA       NA
## horsepower:namedodge d200                                  NA       NA
## horsepower:namedodge dart custom                           NA       NA
## horsepower:namedodge diplomat                              NA       NA
## horsepower:namedodge magnum xe                             NA       NA
## horsepower:namedodge monaco (sw)                           NA       NA
## horsepower:namedodge monaco brougham                       NA       NA
## horsepower:namedodge omni                                  NA       NA
## horsepower:namedodge rampage                               NA       NA
## horsepower:namedodge st. regis                             NA       NA
## horsepower:namefiat 124 sport coupe                        NA       NA
## horsepower:namefiat 124 tc                                 NA       NA
## horsepower:namefiat 124b                                   NA       NA
## horsepower:namefiat 128                                    NA       NA
## horsepower:namefiat 131                                    NA       NA
## horsepower:namefiat strada custom                          NA       NA
## horsepower:namefiat x1.9                                   NA       NA
## horsepower:nameford country                                NA       NA
## horsepower:nameford country squire (sw)                    NA       NA
## horsepower:nameford escort 2h                              NA       NA
## horsepower:nameford escort 4w                              NA       NA
## horsepower:nameford f108                                   NA       NA
## horsepower:nameford f250                                   NA       NA
## horsepower:nameford fairmont                               NA       NA
## horsepower:nameford fairmont (auto)                        NA       NA
## horsepower:nameford fairmont (man)                         NA       NA
## horsepower:nameford fairmont 4                             NA       NA
## horsepower:nameford fairmont futura                        NA       NA
## horsepower:nameford fiesta                                 NA       NA
## horsepower:nameford futura                                 NA       NA
## horsepower:nameford galaxie 500                            NA       NA
## horsepower:nameford gran torino                           NaN      NaN
## horsepower:nameford gran torino (sw)                       NA       NA
## horsepower:nameford granada                                NA       NA
## horsepower:nameford granada ghia                           NA       NA
## horsepower:nameford granada gl                             NA       NA
## horsepower:nameford granada l                              NA       NA
## horsepower:nameford ltd                                   NaN      NaN
## horsepower:nameford ltd landau                             NA       NA
## horsepower:nameford maverick                              NaN      NaN
## horsepower:nameford mustang                                NA       NA
## horsepower:nameford mustang gl                             NA       NA
## horsepower:nameford mustang ii                             NA       NA
## horsepower:nameford mustang ii 2+2                         NA       NA
## horsepower:nameford pinto                                 NaN      NaN
## horsepower:nameford pinto (sw)                             NA       NA
## horsepower:nameford pinto runabout                         NA       NA
## horsepower:nameford ranger                                 NA       NA
## horsepower:nameford thunderbird                            NA       NA
## horsepower:nameford torino                                 NA       NA
## horsepower:nameford torino 500                             NA       NA
## horsepower:namehi 1200d                                    NA       NA
## horsepower:namehonda accord                               NaN      NaN
## horsepower:namehonda accord cvcc                           NA       NA
## horsepower:namehonda accord lx                             NA       NA
## horsepower:namehonda civic                                NaN      NaN
## horsepower:namehonda civic (auto)                          NA       NA
## horsepower:namehonda civic 1300                            NA       NA
## horsepower:namehonda civic 1500 gl                         NA       NA
## horsepower:namehonda civic cvcc                           NaN      NaN
## horsepower:namehonda prelude                               NA       NA
## horsepower:namemaxda glc deluxe                            NA       NA
## horsepower:namemaxda rx3                                   NA       NA
## horsepower:namemazda 626                                  NaN      NaN
## horsepower:namemazda glc                                   NA       NA
## horsepower:namemazda glc 4                                 NA       NA
## horsepower:namemazda glc custom                            NA       NA
## horsepower:namemazda glc custom l                          NA       NA
## horsepower:namemazda glc deluxe                            NA       NA
## horsepower:namemazda rx-4                                  NA       NA
## horsepower:namemazda rx-7 gs                               NA       NA
## horsepower:namemazda rx2 coupe                             NA       NA
## horsepower:namemercedes benz 300d                          NA       NA
## horsepower:namemercedes-benz 240d                          NA       NA
## horsepower:namemercedes-benz 280s                          NA       NA
## horsepower:namemercury capri 2000                          NA       NA
## horsepower:namemercury capri v6                            NA       NA
## horsepower:namemercury cougar brougham                     NA       NA
## horsepower:namemercury grand marquis                       NA       NA
## horsepower:namemercury lynx l                              NA       NA
## horsepower:namemercury marquis                             NA       NA
## horsepower:namemercury marquis brougham                    NA       NA
## horsepower:namemercury monarch                             NA       NA
## horsepower:namemercury monarch ghia                        NA       NA
## horsepower:namemercury zephyr                              NA       NA
## horsepower:namemercury zephyr 6                            NA       NA
## horsepower:namenissan stanza xe                            NA       NA
## horsepower:nameoldsmobile cutlass ciera (diesel)           NA       NA
## horsepower:nameoldsmobile cutlass ls                       NA       NA
## horsepower:nameoldsmobile cutlass salon brougham          NaN      NaN
## horsepower:nameoldsmobile cutlass supreme                  NA       NA
## horsepower:nameoldsmobile delta 88 royale                  NA       NA
## horsepower:nameoldsmobile omega                            NA       NA
## horsepower:nameoldsmobile omega brougham                   NA       NA
## horsepower:nameoldsmobile starfire sx                      NA       NA
## horsepower:nameoldsmobile vista cruiser                    NA       NA
## horsepower:nameopel 1900                                  NaN      NaN
## horsepower:nameopel manta                                  NA       NA
## horsepower:namepeugeot 304                                 NA       NA
## horsepower:namepeugeot 504                                NaN      NaN
## horsepower:namepeugeot 504 (sw)                            NA       NA
## horsepower:namepeugeot 505s turbo diesel                   NA       NA
## horsepower:namepeugeot 604sl                               NA       NA
## horsepower:nameplymouth 'cuda 340                          NA       NA
## horsepower:nameplymouth arrow gs                           NA       NA
## horsepower:nameplymouth champ                              NA       NA
## horsepower:nameplymouth cricket                            NA       NA
## horsepower:nameplymouth custom suburb                      NA       NA
## horsepower:nameplymouth duster                             NA       NA
## horsepower:nameplymouth fury                               NA       NA
## horsepower:nameplymouth fury gran sedan                    NA       NA
## horsepower:nameplymouth fury iii                           NA       NA
## horsepower:nameplymouth grand fury                         NA       NA
## horsepower:nameplymouth horizon                            NA       NA
## horsepower:nameplymouth horizon 4                          NA       NA
## horsepower:nameplymouth horizon miser                      NA       NA
## horsepower:nameplymouth horizon tc3                        NA       NA
## horsepower:nameplymouth reliant                            NA       NA
## horsepower:nameplymouth sapporo                            NA       NA
## horsepower:nameplymouth satellite                          NA       NA
## horsepower:nameplymouth satellite custom                   NA       NA
## horsepower:nameplymouth satellite custom (sw)              NA       NA
## horsepower:nameplymouth satellite sebring                  NA       NA
## horsepower:nameplymouth valiant                           NaN      NaN
## horsepower:nameplymouth valiant custom                     NA       NA
## horsepower:nameplymouth volare                             NA       NA
## horsepower:nameplymouth volare custom                      NA       NA
## horsepower:nameplymouth volare premier v8                  NA       NA
## horsepower:namepontiac astro                               NA       NA
## horsepower:namepontiac catalina                           NaN      NaN
## horsepower:namepontiac catalina brougham                   NA       NA
## horsepower:namepontiac firebird                            NA       NA
## horsepower:namepontiac grand prix                          NA       NA
## horsepower:namepontiac grand prix lj                       NA       NA
## horsepower:namepontiac j2000 se hatchback                  NA       NA
## horsepower:namepontiac lemans v6                           NA       NA
## horsepower:namepontiac phoenix                             NA       NA
## horsepower:namepontiac phoenix lj                          NA       NA
## horsepower:namepontiac safari (sw)                         NA       NA
## horsepower:namepontiac sunbird coupe                       NA       NA
## horsepower:namepontiac ventura sj                          NA       NA
## horsepower:namerenault 12 (sw)                             NA       NA
## horsepower:namerenault 12tl                                NA       NA
## horsepower:namerenault 5 gtl                               NA       NA
## horsepower:namesaab 99e                                    NA       NA
## horsepower:namesaab 99gle                                  NA       NA
## horsepower:namesaab 99le                                  NaN      NaN
## horsepower:namesubaru                                      NA       NA
## horsepower:namesubaru dl                                   NA       NA
## horsepower:nametoyota carina                               NA       NA
## horsepower:nametoyota celica gt                            NA       NA
## horsepower:nametoyota celica gt liftback                   NA       NA
## horsepower:nametoyota corolla                             NaN      NaN
## horsepower:nametoyota corolla 1200                         NA       NA
## horsepower:nametoyota corolla 1600 (sw)                    NA       NA
## horsepower:nametoyota corolla liftback                     NA       NA
## horsepower:nametoyota corolla tercel                       NA       NA
## horsepower:nametoyota corona                               NA       NA
## horsepower:nametoyota corona hardtop                       NA       NA
## horsepower:nametoyota corona liftback                      NA       NA
## horsepower:nametoyota corona mark ii                       NA       NA
## horsepower:nametoyota cressida                             NA       NA
## horsepower:nametoyota mark ii                              NA       NA
## horsepower:nametoyota starlet                              NA       NA
## horsepower:nametoyota tercel                               NA       NA
## horsepower:nametoyouta corona mark ii (sw)                 NA       NA
## horsepower:nametriumph tr7 coupe                           NA       NA
## horsepower:namevokswagen rabbit                            NA       NA
## horsepower:namevolkswagen 1131 deluxe sedan                NA       NA
## horsepower:namevolkswagen 411 (sw)                         NA       NA
## horsepower:namevolkswagen dasher                           NA       NA
## horsepower:namevolkswagen jetta                            NA       NA
## horsepower:namevolkswagen model 111                        NA       NA
## horsepower:namevolkswagen rabbit                           NA       NA
## horsepower:namevolkswagen rabbit custom                    NA       NA
## horsepower:namevolkswagen rabbit custom diesel             NA       NA
## horsepower:namevolkswagen rabbit l                         NA       NA
## horsepower:namevolkswagen scirocco                         NA       NA
## horsepower:namevolkswagen super beetle                     NA       NA
## horsepower:namevolkswagen type 3                           NA       NA
## horsepower:namevolvo 144ea                                 NA       NA
## horsepower:namevolvo 145e (sw)                             NA       NA
## horsepower:namevolvo 244dl                                 NA       NA
## horsepower:namevolvo 245                                   NA       NA
## horsepower:namevolvo 264gl                                 NA       NA
## horsepower:namevolvo diesel                                NA       NA
## horsepower:namevw dasher (diesel)                          NA       NA
## horsepower:namevw pickup                                   NA       NA
## horsepower:namevw rabbit                                   NA       NA
## horsepower:namevw rabbit c (diesel)                        NA       NA
## horsepower:namevw rabbit custom                            NA       NA
## weight:acceleration                                       NaN      NaN
## weight:year                                               NaN      NaN
## weight:origin                                             NaN      NaN
## weight:nameamc ambassador dpl                              NA       NA
## weight:nameamc ambassador sst                              NA       NA
## weight:nameamc concord                                     NA       NA
## weight:nameamc concord d/l                                 NA       NA
## weight:nameamc concord dl 6                                NA       NA
## weight:nameamc gremlin                                    NaN      NaN
## weight:nameamc hornet                                     NaN      NaN
## weight:nameamc hornet sportabout (sw)                      NA       NA
## weight:nameamc matador                                    NaN      NaN
## weight:nameamc matador (sw)                               NaN      NaN
## weight:nameamc pacer                                       NA       NA
## weight:nameamc pacer d/l                                   NA       NA
## weight:nameamc rebel sst                                   NA       NA
## weight:nameamc spirit dl                                   NA       NA
## weight:nameaudi 100 ls                                     NA       NA
## weight:nameaudi 100ls                                      NA       NA
## weight:nameaudi 4000                                       NA       NA
## weight:nameaudi 5000                                       NA       NA
## weight:nameaudi 5000s (diesel)                             NA       NA
## weight:nameaudi fox                                        NA       NA
## weight:namebmw 2002                                        NA       NA
## weight:namebmw 320i                                        NA       NA
## weight:namebuick century                                  NaN      NaN
## weight:namebuick century 350                               NA       NA
## weight:namebuick century limited                           NA       NA
## weight:namebuick century luxus (sw)                        NA       NA
## weight:namebuick century special                           NA       NA
## weight:namebuick electra 225 custom                        NA       NA
## weight:namebuick estate wagon (sw)                         NA       NA
## weight:namebuick lesabre custom                            NA       NA
## weight:namebuick opel isuzu deluxe                         NA       NA
## weight:namebuick regal sport coupe (turbo)                 NA       NA
## weight:namebuick skyhawk                                   NA       NA
## weight:namebuick skylark                                   NA       NA
## weight:namebuick skylark 320                               NA       NA
## weight:namebuick skylark limited                           NA       NA
## weight:namecadillac eldorado                               NA       NA
## weight:namecadillac seville                                NA       NA
## weight:namecapri ii                                        NA       NA
## weight:namechevroelt chevelle malibu                       NA       NA
## weight:namechevrolet bel air                               NA       NA
## weight:namechevrolet camaro                                NA       NA
## weight:namechevrolet caprice classic                       NA       NA
## weight:namechevrolet cavalier                              NA       NA
## weight:namechevrolet cavalier 2-door                       NA       NA
## weight:namechevrolet cavalier wagon                        NA       NA
## weight:namechevrolet chevelle concours (sw)                NA       NA
## weight:namechevrolet chevelle malibu                       NA       NA
## weight:namechevrolet chevelle malibu classic               NA       NA
## weight:namechevrolet chevette                             NaN      NaN
## weight:namechevrolet citation                              NA       NA
## weight:namechevrolet concours                              NA       NA
## weight:namechevrolet impala                               NaN      NaN
## weight:namechevrolet malibu                                NA       NA
## weight:namechevrolet malibu classic (sw)                   NA       NA
## weight:namechevrolet monte carlo                           NA       NA
## weight:namechevrolet monte carlo landau                    NA       NA
## weight:namechevrolet monte carlo s                         NA       NA
## weight:namechevrolet monza 2+2                             NA       NA
## weight:namechevrolet nova                                 NaN      NaN
## weight:namechevrolet nova custom                           NA       NA
## weight:namechevrolet vega                                 NaN      NaN
## weight:namechevrolet vega (sw)                             NA       NA
## weight:namechevrolet vega 2300                             NA       NA
## weight:namechevrolet woody                                 NA       NA
## weight:namechevy c10                                       NA       NA
## weight:namechevy c20                                       NA       NA
## weight:namechevy s-10                                      NA       NA
## weight:namechrysler cordoba                                NA       NA
## weight:namechrysler lebaron medallion                      NA       NA
## weight:namechrysler lebaron salon                          NA       NA
## weight:namechrysler lebaron town @ country (sw)            NA       NA
## weight:namechrysler new yorker brougham                    NA       NA
## weight:namechrysler newport royal                          NA       NA
## weight:namedatsun 1200                                     NA       NA
## weight:namedatsun 200-sx                                   NA       NA
## weight:namedatsun 200sx                                    NA       NA
## weight:namedatsun 210                                     NaN      NaN
## weight:namedatsun 210 mpg                                  NA       NA
## weight:namedatsun 280-zx                                   NA       NA
## weight:namedatsun 310                                      NA       NA
## weight:namedatsun 310 gx                                   NA       NA
## weight:namedatsun 510                                      NA       NA
## weight:namedatsun 510 (sw)                                 NA       NA
## weight:namedatsun 510 hatchback                            NA       NA
## weight:namedatsun 610                                      NA       NA
## weight:namedatsun 710                                      NA       NA
## weight:namedatsun 810                                      NA       NA
## weight:namedatsun 810 maxima                               NA       NA
## weight:namedatsun b-210                                    NA       NA
## weight:namedatsun b210                                     NA       NA
## weight:namedatsun b210 gx                                  NA       NA
## weight:namedatsun f-10 hatchback                           NA       NA
## weight:namedatsun pl510                                    NA       NA
## weight:namedodge aries se                                  NA       NA
## weight:namedodge aries wagon (sw)                          NA       NA
## weight:namedodge aspen                                     NA       NA
## weight:namedodge aspen 6                                   NA       NA
## weight:namedodge aspen se                                  NA       NA
## weight:namedodge challenger se                             NA       NA
## weight:namedodge charger 2.2                               NA       NA
## weight:namedodge colt                                      NA       NA
## weight:namedodge colt (sw)                                 NA       NA
## weight:namedodge colt hardtop                              NA       NA
## weight:namedodge colt hatchback custom                     NA       NA
## weight:namedodge colt m/m                                  NA       NA
## weight:namedodge coronet brougham                          NA       NA
## weight:namedodge coronet custom                            NA       NA
## weight:namedodge coronet custom (sw)                       NA       NA
## weight:namedodge d100                                      NA       NA
## weight:namedodge d200                                      NA       NA
## weight:namedodge dart custom                               NA       NA
## weight:namedodge diplomat                                  NA       NA
## weight:namedodge magnum xe                                 NA       NA
## weight:namedodge monaco (sw)                               NA       NA
## weight:namedodge monaco brougham                           NA       NA
## weight:namedodge omni                                      NA       NA
## weight:namedodge rampage                                   NA       NA
## weight:namedodge st. regis                                 NA       NA
## weight:namefiat 124 sport coupe                            NA       NA
## weight:namefiat 124 tc                                     NA       NA
## weight:namefiat 124b                                       NA       NA
## weight:namefiat 128                                        NA       NA
## weight:namefiat 131                                        NA       NA
## weight:namefiat strada custom                              NA       NA
## weight:namefiat x1.9                                       NA       NA
## weight:nameford country                                    NA       NA
## weight:nameford country squire (sw)                        NA       NA
## weight:nameford escort 2h                                  NA       NA
## weight:nameford escort 4w                                  NA       NA
## weight:nameford f108                                       NA       NA
## weight:nameford f250                                       NA       NA
## weight:nameford fairmont                                   NA       NA
## weight:nameford fairmont (auto)                            NA       NA
## weight:nameford fairmont (man)                             NA       NA
## weight:nameford fairmont 4                                 NA       NA
## weight:nameford fairmont futura                            NA       NA
## weight:nameford fiesta                                     NA       NA
## weight:nameford futura                                     NA       NA
## weight:nameford galaxie 500                               NaN      NaN
## weight:nameford gran torino                                NA       NA
## weight:nameford gran torino (sw)                           NA       NA
## weight:nameford granada                                    NA       NA
## weight:nameford granada ghia                               NA       NA
## weight:nameford granada gl                                 NA       NA
## weight:nameford granada l                                  NA       NA
## weight:nameford ltd                                        NA       NA
## weight:nameford ltd landau                                 NA       NA
## weight:nameford maverick                                   NA       NA
## weight:nameford mustang                                    NA       NA
## weight:nameford mustang gl                                 NA       NA
## weight:nameford mustang ii                                 NA       NA
## weight:nameford mustang ii 2+2                             NA       NA
## weight:nameford pinto                                      NA       NA
## weight:nameford pinto (sw)                                 NA       NA
## weight:nameford pinto runabout                             NA       NA
## weight:nameford ranger                                     NA       NA
## weight:nameford thunderbird                                NA       NA
## weight:nameford torino                                     NA       NA
## weight:nameford torino 500                                 NA       NA
## weight:namehi 1200d                                        NA       NA
## weight:namehonda accord                                    NA       NA
## weight:namehonda accord cvcc                               NA       NA
## weight:namehonda accord lx                                 NA       NA
## weight:namehonda civic                                     NA       NA
## weight:namehonda civic (auto)                              NA       NA
## weight:namehonda civic 1300                                NA       NA
## weight:namehonda civic 1500 gl                             NA       NA
## weight:namehonda civic cvcc                                NA       NA
## weight:namehonda prelude                                   NA       NA
## weight:namemaxda glc deluxe                                NA       NA
## weight:namemaxda rx3                                       NA       NA
## weight:namemazda 626                                       NA       NA
## weight:namemazda glc                                       NA       NA
## weight:namemazda glc 4                                     NA       NA
## weight:namemazda glc custom                                NA       NA
## weight:namemazda glc custom l                              NA       NA
## weight:namemazda glc deluxe                                NA       NA
## weight:namemazda rx-4                                      NA       NA
## weight:namemazda rx-7 gs                                   NA       NA
## weight:namemazda rx2 coupe                                 NA       NA
## weight:namemercedes benz 300d                              NA       NA
## weight:namemercedes-benz 240d                              NA       NA
## weight:namemercedes-benz 280s                              NA       NA
## weight:namemercury capri 2000                              NA       NA
## weight:namemercury capri v6                                NA       NA
## weight:namemercury cougar brougham                         NA       NA
## weight:namemercury grand marquis                           NA       NA
## weight:namemercury lynx l                                  NA       NA
## weight:namemercury marquis                                 NA       NA
## weight:namemercury marquis brougham                        NA       NA
## weight:namemercury monarch                                 NA       NA
## weight:namemercury monarch ghia                            NA       NA
## weight:namemercury zephyr                                  NA       NA
## weight:namemercury zephyr 6                                NA       NA
## weight:namenissan stanza xe                                NA       NA
## weight:nameoldsmobile cutlass ciera (diesel)               NA       NA
## weight:nameoldsmobile cutlass ls                           NA       NA
## weight:nameoldsmobile cutlass salon brougham               NA       NA
## weight:nameoldsmobile cutlass supreme                      NA       NA
## weight:nameoldsmobile delta 88 royale                      NA       NA
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## weight:nameoldsmobile omega brougham                       NA       NA
## weight:nameoldsmobile starfire sx                          NA       NA
## weight:nameoldsmobile vista cruiser                        NA       NA
## weight:nameopel 1900                                       NA       NA
## weight:nameopel manta                                      NA       NA
## weight:namepeugeot 304                                     NA       NA
## weight:namepeugeot 504                                     NA       NA
## weight:namepeugeot 504 (sw)                                NA       NA
## weight:namepeugeot 505s turbo diesel                       NA       NA
## weight:namepeugeot 604sl                                   NA       NA
## weight:nameplymouth 'cuda 340                              NA       NA
## weight:nameplymouth arrow gs                               NA       NA
## weight:nameplymouth champ                                  NA       NA
## weight:nameplymouth cricket                                NA       NA
## weight:nameplymouth custom suburb                          NA       NA
## weight:nameplymouth duster                                 NA       NA
## weight:nameplymouth fury                                   NA       NA
## weight:nameplymouth fury gran sedan                        NA       NA
## weight:nameplymouth fury iii                               NA       NA
## weight:nameplymouth grand fury                             NA       NA
## weight:nameplymouth horizon                                NA       NA
## weight:nameplymouth horizon 4                              NA       NA
## weight:nameplymouth horizon miser                          NA       NA
## weight:nameplymouth horizon tc3                            NA       NA
## weight:nameplymouth reliant                                NA       NA
## weight:nameplymouth sapporo                                NA       NA
## weight:nameplymouth satellite                              NA       NA
## weight:nameplymouth satellite custom                       NA       NA
## weight:nameplymouth satellite custom (sw)                  NA       NA
## weight:nameplymouth satellite sebring                      NA       NA
## weight:nameplymouth valiant                                NA       NA
## weight:nameplymouth valiant custom                         NA       NA
## weight:nameplymouth volare                                 NA       NA
## weight:nameplymouth volare custom                          NA       NA
## weight:nameplymouth volare premier v8                      NA       NA
## weight:namepontiac astro                                   NA       NA
## weight:namepontiac catalina                                NA       NA
## weight:namepontiac catalina brougham                       NA       NA
## weight:namepontiac firebird                                NA       NA
## weight:namepontiac grand prix                              NA       NA
## weight:namepontiac grand prix lj                           NA       NA
## weight:namepontiac j2000 se hatchback                      NA       NA
## weight:namepontiac lemans v6                               NA       NA
## weight:namepontiac phoenix                                 NA       NA
## weight:namepontiac phoenix lj                              NA       NA
## weight:namepontiac safari (sw)                             NA       NA
## weight:namepontiac sunbird coupe                           NA       NA
## weight:namepontiac ventura sj                              NA       NA
## weight:namerenault 12 (sw)                                 NA       NA
## weight:namerenault 12tl                                    NA       NA
## weight:namerenault 5 gtl                                   NA       NA
## weight:namesaab 99e                                        NA       NA
## weight:namesaab 99gle                                      NA       NA
## weight:namesaab 99le                                       NA       NA
## weight:namesubaru                                          NA       NA
## weight:namesubaru dl                                       NA       NA
## weight:nametoyota carina                                   NA       NA
## weight:nametoyota celica gt                                NA       NA
## weight:nametoyota celica gt liftback                       NA       NA
## weight:nametoyota corolla                                  NA       NA
## weight:nametoyota corolla 1200                             NA       NA
## weight:nametoyota corolla 1600 (sw)                        NA       NA
## weight:nametoyota corolla liftback                         NA       NA
## weight:nametoyota corolla tercel                           NA       NA
## weight:nametoyota corona                                   NA       NA
## weight:nametoyota corona hardtop                           NA       NA
## weight:nametoyota corona liftback                          NA       NA
## weight:nametoyota corona mark ii                           NA       NA
## weight:nametoyota cressida                                 NA       NA
## weight:nametoyota mark ii                                  NA       NA
## weight:nametoyota starlet                                  NA       NA
## weight:nametoyota tercel                                   NA       NA
## weight:nametoyouta corona mark ii (sw)                     NA       NA
## weight:nametriumph tr7 coupe                               NA       NA
## weight:namevokswagen rabbit                                NA       NA
## weight:namevolkswagen 1131 deluxe sedan                    NA       NA
## weight:namevolkswagen 411 (sw)                             NA       NA
## weight:namevolkswagen dasher                               NA       NA
## weight:namevolkswagen jetta                                NA       NA
## weight:namevolkswagen model 111                            NA       NA
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## weight:namevolkswagen rabbit custom diesel                 NA       NA
## weight:namevolkswagen rabbit l                             NA       NA
## weight:namevolkswagen scirocco                             NA       NA
## weight:namevolkswagen super beetle                         NA       NA
## weight:namevolkswagen type 3                               NA       NA
## weight:namevolvo 144ea                                     NA       NA
## weight:namevolvo 145e (sw)                                 NA       NA
## weight:namevolvo 244dl                                     NA       NA
## weight:namevolvo 245                                       NA       NA
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## weight:namevw rabbit custom                                NA       NA
## acceleration:year                                          NA       NA
## acceleration:origin                                        NA       NA
## acceleration:nameamc ambassador dpl                        NA       NA
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## acceleration:nameamc concord dl 6                          NA       NA
## acceleration:nameamc gremlin                               NA       NA
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## acceleration:nameamc hornet sportabout (sw)                NA       NA
## acceleration:nameamc matador                               NA       NA
## acceleration:nameamc matador (sw)                          NA       NA
## acceleration:nameamc pacer                                 NA       NA
## acceleration:nameamc pacer d/l                             NA       NA
## acceleration:nameamc rebel sst                             NA       NA
## acceleration:nameamc spirit dl                             NA       NA
## acceleration:nameaudi 100 ls                               NA       NA
## acceleration:nameaudi 100ls                                NA       NA
## acceleration:nameaudi 4000                                 NA       NA
## acceleration:nameaudi 5000                                 NA       NA
## acceleration:nameaudi 5000s (diesel)                       NA       NA
## acceleration:nameaudi fox                                  NA       NA
## acceleration:namebmw 2002                                  NA       NA
## acceleration:namebmw 320i                                  NA       NA
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## acceleration:namebuick century 350                         NA       NA
## acceleration:namebuick century limited                     NA       NA
## acceleration:namebuick century luxus (sw)                  NA       NA
## acceleration:namebuick century special                     NA       NA
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## acceleration:namebuick opel isuzu deluxe                   NA       NA
## acceleration:namebuick regal sport coupe (turbo)           NA       NA
## acceleration:namebuick skyhawk                             NA       NA
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## acceleration:namebuick skylark 320                         NA       NA
## acceleration:namebuick skylark limited                     NA       NA
## acceleration:namecadillac eldorado                         NA       NA
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## acceleration:namechevrolet malibu classic (sw)             NA       NA
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## acceleration:namechevrolet monte carlo s                   NA       NA
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## acceleration:namechevrolet vega (sw)                       NA       NA
## acceleration:namechevrolet vega 2300                       NA       NA
## acceleration:namechevrolet woody                           NA       NA
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## acceleration:namedatsun 1200                               NA       NA
## acceleration:namedatsun 200-sx                             NA       NA
## acceleration:namedatsun 200sx                              NA       NA
## acceleration:namedatsun 210                                NA       NA
## acceleration:namedatsun 210 mpg                            NA       NA
## acceleration:namedatsun 280-zx                             NA       NA
## acceleration:namedatsun 310                                NA       NA
## acceleration:namedatsun 310 gx                             NA       NA
## acceleration:namedatsun 510                                NA       NA
## acceleration:namedatsun 510 (sw)                           NA       NA
## acceleration:namedatsun 510 hatchback                      NA       NA
## acceleration:namedatsun 610                                NA       NA
## acceleration:namedatsun 710                                NA       NA
## acceleration:namedatsun 810                                NA       NA
## acceleration:namedatsun 810 maxima                         NA       NA
## acceleration:namedatsun b-210                              NA       NA
## acceleration:namedatsun b210                               NA       NA
## acceleration:namedatsun b210 gx                            NA       NA
## acceleration:namedatsun f-10 hatchback                     NA       NA
## acceleration:namedatsun pl510                              NA       NA
## acceleration:namedodge aries se                            NA       NA
## acceleration:namedodge aries wagon (sw)                    NA       NA
## acceleration:namedodge aspen                               NA       NA
## acceleration:namedodge aspen 6                             NA       NA
## acceleration:namedodge aspen se                            NA       NA
## acceleration:namedodge challenger se                       NA       NA
## acceleration:namedodge charger 2.2                         NA       NA
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## acceleration:namedodge colt (sw)                           NA       NA
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## acceleration:namedodge colt hatchback custom               NA       NA
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## acceleration:namedodge coronet custom                      NA       NA
## acceleration:namedodge coronet custom (sw)                 NA       NA
## acceleration:namedodge d100                                NA       NA
## acceleration:namedodge d200                                NA       NA
## acceleration:namedodge dart custom                         NA       NA
## acceleration:namedodge diplomat                            NA       NA
## acceleration:namedodge magnum xe                           NA       NA
## acceleration:namedodge monaco (sw)                         NA       NA
## acceleration:namedodge monaco brougham                     NA       NA
## acceleration:namedodge omni                                NA       NA
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## acceleration:namedodge st. regis                           NA       NA
## acceleration:namefiat 124 sport coupe                      NA       NA
## acceleration:namefiat 124 tc                               NA       NA
## acceleration:namefiat 124b                                 NA       NA
## acceleration:namefiat 128                                  NA       NA
## acceleration:namefiat 131                                  NA       NA
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## acceleration:namefiat x1.9                                 NA       NA
## acceleration:nameford country                              NA       NA
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## acceleration:nameford escort 2h                            NA       NA
## acceleration:nameford escort 4w                            NA       NA
## acceleration:nameford f108                                 NA       NA
## acceleration:nameford f250                                 NA       NA
## acceleration:nameford fairmont                             NA       NA
## acceleration:nameford fairmont (auto)                      NA       NA
## acceleration:nameford fairmont (man)                       NA       NA
## acceleration:nameford fairmont 4                           NA       NA
## acceleration:nameford fairmont futura                      NA       NA
## acceleration:nameford fiesta                               NA       NA
## acceleration:nameford futura                               NA       NA
## acceleration:nameford galaxie 500                          NA       NA
## acceleration:nameford gran torino                          NA       NA
## acceleration:nameford gran torino (sw)                     NA       NA
## acceleration:nameford granada                              NA       NA
## acceleration:nameford granada ghia                         NA       NA
## acceleration:nameford granada gl                           NA       NA
## acceleration:nameford granada l                            NA       NA
## acceleration:nameford ltd                                  NA       NA
## acceleration:nameford ltd landau                           NA       NA
## acceleration:nameford maverick                             NA       NA
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## acceleration:nameford mustang gl                           NA       NA
## acceleration:nameford mustang ii                           NA       NA
## acceleration:nameford mustang ii 2+2                       NA       NA
## acceleration:nameford pinto                                NA       NA
## acceleration:nameford pinto (sw)                           NA       NA
## acceleration:nameford pinto runabout                       NA       NA
## acceleration:nameford ranger                               NA       NA
## acceleration:nameford thunderbird                          NA       NA
## acceleration:nameford torino                               NA       NA
## acceleration:nameford torino 500                           NA       NA
## acceleration:namehi 1200d                                  NA       NA
## acceleration:namehonda accord                              NA       NA
## acceleration:namehonda accord cvcc                         NA       NA
## acceleration:namehonda accord lx                           NA       NA
## acceleration:namehonda civic                               NA       NA
## acceleration:namehonda civic (auto)                        NA       NA
## acceleration:namehonda civic 1300                          NA       NA
## acceleration:namehonda civic 1500 gl                       NA       NA
## acceleration:namehonda civic cvcc                          NA       NA
## acceleration:namehonda prelude                             NA       NA
## acceleration:namemaxda glc deluxe                          NA       NA
## acceleration:namemaxda rx3                                 NA       NA
## acceleration:namemazda 626                                 NA       NA
## acceleration:namemazda glc                                 NA       NA
## acceleration:namemazda glc 4                               NA       NA
## acceleration:namemazda glc custom                          NA       NA
## acceleration:namemazda glc custom l                        NA       NA
## acceleration:namemazda glc deluxe                          NA       NA
## acceleration:namemazda rx-4                                NA       NA
## acceleration:namemazda rx-7 gs                             NA       NA
## acceleration:namemazda rx2 coupe                           NA       NA
## acceleration:namemercedes benz 300d                        NA       NA
## acceleration:namemercedes-benz 240d                        NA       NA
## acceleration:namemercedes-benz 280s                        NA       NA
## acceleration:namemercury capri 2000                        NA       NA
## acceleration:namemercury capri v6                          NA       NA
## acceleration:namemercury cougar brougham                   NA       NA
## acceleration:namemercury grand marquis                     NA       NA
## acceleration:namemercury lynx l                            NA       NA
## acceleration:namemercury marquis                           NA       NA
## acceleration:namemercury marquis brougham                  NA       NA
## acceleration:namemercury monarch                           NA       NA
## acceleration:namemercury monarch ghia                      NA       NA
## acceleration:namemercury zephyr                            NA       NA
## acceleration:namemercury zephyr 6                          NA       NA
## acceleration:namenissan stanza xe                          NA       NA
## acceleration:nameoldsmobile cutlass ciera (diesel)         NA       NA
## acceleration:nameoldsmobile cutlass ls                     NA       NA
## acceleration:nameoldsmobile cutlass salon brougham         NA       NA
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## acceleration:namepeugeot 505s turbo diesel                 NA       NA
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## year:origin                                                NA       NA
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## year:nameaudi 100ls                                        NA       NA
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## year:nameaudi 5000s (diesel)                               NA       NA
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## origin:namedatsun 280-zx                                   NA       NA
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## origin:namedatsun 810                                      NA       NA
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## origin:namedatsun b210                                     NA       NA
## origin:namedatsun b210 gx                                  NA       NA
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## origin:namedodge aries se                                  NA       NA
## origin:namedodge aries wagon (sw)                          NA       NA
## origin:namedodge aspen                                     NA       NA
## origin:namedodge aspen 6                                   NA       NA
## origin:namedodge aspen se                                  NA       NA
## origin:namedodge challenger se                             NA       NA
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## origin:namedodge colt (sw)                                 NA       NA
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## origin:namedodge colt hatchback custom                     NA       NA
## origin:namedodge colt m/m                                  NA       NA
## origin:namedodge coronet brougham                          NA       NA
## origin:namedodge coronet custom                            NA       NA
## origin:namedodge coronet custom (sw)                       NA       NA
## origin:namedodge d100                                      NA       NA
## origin:namedodge d200                                      NA       NA
## origin:namedodge dart custom                               NA       NA
## origin:namedodge diplomat                                  NA       NA
## origin:namedodge magnum xe                                 NA       NA
## origin:namedodge monaco (sw)                               NA       NA
## origin:namedodge monaco brougham                           NA       NA
## origin:namedodge omni                                      NA       NA
## origin:namedodge rampage                                   NA       NA
## origin:namedodge st. regis                                 NA       NA
## origin:namefiat 124 sport coupe                            NA       NA
## origin:namefiat 124 tc                                     NA       NA
## origin:namefiat 124b                                       NA       NA
## origin:namefiat 128                                        NA       NA
## origin:namefiat 131                                        NA       NA
## origin:namefiat strada custom                              NA       NA
## origin:namefiat x1.9                                       NA       NA
## origin:nameford country                                    NA       NA
## origin:nameford country squire (sw)                        NA       NA
## origin:nameford escort 2h                                  NA       NA
## origin:nameford escort 4w                                  NA       NA
## origin:nameford f108                                       NA       NA
## origin:nameford f250                                       NA       NA
## origin:nameford fairmont                                   NA       NA
## origin:nameford fairmont (auto)                            NA       NA
## origin:nameford fairmont (man)                             NA       NA
## origin:nameford fairmont 4                                 NA       NA
## origin:nameford fairmont futura                            NA       NA
## origin:nameford fiesta                                     NA       NA
## origin:nameford futura                                     NA       NA
## origin:nameford galaxie 500                                NA       NA
## origin:nameford gran torino                                NA       NA
## origin:nameford gran torino (sw)                           NA       NA
## origin:nameford granada                                    NA       NA
## origin:nameford granada ghia                               NA       NA
## origin:nameford granada gl                                 NA       NA
## origin:nameford granada l                                  NA       NA
## origin:nameford ltd                                        NA       NA
## origin:nameford ltd landau                                 NA       NA
## origin:nameford maverick                                   NA       NA
## origin:nameford mustang                                    NA       NA
## origin:nameford mustang gl                                 NA       NA
## origin:nameford mustang ii                                 NA       NA
## origin:nameford mustang ii 2+2                             NA       NA
## origin:nameford pinto                                      NA       NA
## origin:nameford pinto (sw)                                 NA       NA
## origin:nameford pinto runabout                             NA       NA
## origin:nameford ranger                                     NA       NA
## origin:nameford thunderbird                                NA       NA
## origin:nameford torino                                     NA       NA
## origin:nameford torino 500                                 NA       NA
## origin:namehi 1200d                                        NA       NA
## origin:namehonda accord                                    NA       NA
## origin:namehonda accord cvcc                               NA       NA
## origin:namehonda accord lx                                 NA       NA
## origin:namehonda civic                                     NA       NA
## origin:namehonda civic (auto)                              NA       NA
## origin:namehonda civic 1300                                NA       NA
## origin:namehonda civic 1500 gl                             NA       NA
## origin:namehonda civic cvcc                                NA       NA
## origin:namehonda prelude                                   NA       NA
## origin:namemaxda glc deluxe                                NA       NA
## origin:namemaxda rx3                                       NA       NA
## origin:namemazda 626                                       NA       NA
## origin:namemazda glc                                       NA       NA
## origin:namemazda glc 4                                     NA       NA
## origin:namemazda glc custom                                NA       NA
## origin:namemazda glc custom l                              NA       NA
## origin:namemazda glc deluxe                                NA       NA
## origin:namemazda rx-4                                      NA       NA
## origin:namemazda rx-7 gs                                   NA       NA
## origin:namemazda rx2 coupe                                 NA       NA
## origin:namemercedes benz 300d                              NA       NA
## origin:namemercedes-benz 240d                              NA       NA
## origin:namemercedes-benz 280s                              NA       NA
## origin:namemercury capri 2000                              NA       NA
## origin:namemercury capri v6                                NA       NA
## origin:namemercury cougar brougham                         NA       NA
## origin:namemercury grand marquis                           NA       NA
## origin:namemercury lynx l                                  NA       NA
## origin:namemercury marquis                                 NA       NA
## origin:namemercury marquis brougham                        NA       NA
## origin:namemercury monarch                                 NA       NA
## origin:namemercury monarch ghia                            NA       NA
## origin:namemercury zephyr                                  NA       NA
## origin:namemercury zephyr 6                                NA       NA
## origin:namenissan stanza xe                                NA       NA
## origin:nameoldsmobile cutlass ciera (diesel)               NA       NA
## origin:nameoldsmobile cutlass ls                           NA       NA
## origin:nameoldsmobile cutlass salon brougham               NA       NA
## origin:nameoldsmobile cutlass supreme                      NA       NA
## origin:nameoldsmobile delta 88 royale                      NA       NA
## origin:nameoldsmobile omega                                NA       NA
## origin:nameoldsmobile omega brougham                       NA       NA
## origin:nameoldsmobile starfire sx                          NA       NA
## origin:nameoldsmobile vista cruiser                        NA       NA
## origin:nameopel 1900                                       NA       NA
## origin:nameopel manta                                      NA       NA
## origin:namepeugeot 304                                     NA       NA
## origin:namepeugeot 504                                     NA       NA
## origin:namepeugeot 504 (sw)                                NA       NA
## origin:namepeugeot 505s turbo diesel                       NA       NA
## origin:namepeugeot 604sl                                   NA       NA
## origin:nameplymouth 'cuda 340                              NA       NA
## origin:nameplymouth arrow gs                               NA       NA
## origin:nameplymouth champ                                  NA       NA
## origin:nameplymouth cricket                                NA       NA
## origin:nameplymouth custom suburb                          NA       NA
## origin:nameplymouth duster                                 NA       NA
## origin:nameplymouth fury                                   NA       NA
## origin:nameplymouth fury gran sedan                        NA       NA
## origin:nameplymouth fury iii                               NA       NA
## origin:nameplymouth grand fury                             NA       NA
## origin:nameplymouth horizon                                NA       NA
## origin:nameplymouth horizon 4                              NA       NA
## origin:nameplymouth horizon miser                          NA       NA
## origin:nameplymouth horizon tc3                            NA       NA
## origin:nameplymouth reliant                                NA       NA
## origin:nameplymouth sapporo                                NA       NA
## origin:nameplymouth satellite                              NA       NA
## origin:nameplymouth satellite custom                       NA       NA
## origin:nameplymouth satellite custom (sw)                  NA       NA
## origin:nameplymouth satellite sebring                      NA       NA
## origin:nameplymouth valiant                                NA       NA
## origin:nameplymouth valiant custom                         NA       NA
## origin:nameplymouth volare                                 NA       NA
## origin:nameplymouth volare custom                          NA       NA
## origin:nameplymouth volare premier v8                      NA       NA
## origin:namepontiac astro                                   NA       NA
## origin:namepontiac catalina                                NA       NA
## origin:namepontiac catalina brougham                       NA       NA
## origin:namepontiac firebird                                NA       NA
## origin:namepontiac grand prix                              NA       NA
## origin:namepontiac grand prix lj                           NA       NA
## origin:namepontiac j2000 se hatchback                      NA       NA
## origin:namepontiac lemans v6                               NA       NA
## origin:namepontiac phoenix                                 NA       NA
## origin:namepontiac phoenix lj                              NA       NA
## origin:namepontiac safari (sw)                             NA       NA
## origin:namepontiac sunbird coupe                           NA       NA
## origin:namepontiac ventura sj                              NA       NA
## origin:namerenault 12 (sw)                                 NA       NA
## origin:namerenault 12tl                                    NA       NA
## origin:namerenault 5 gtl                                   NA       NA
## origin:namesaab 99e                                        NA       NA
## origin:namesaab 99gle                                      NA       NA
## origin:namesaab 99le                                       NA       NA
## origin:namesubaru                                          NA       NA
## origin:namesubaru dl                                       NA       NA
## origin:nametoyota carina                                   NA       NA
## origin:nametoyota celica gt                                NA       NA
## origin:nametoyota celica gt liftback                       NA       NA
## origin:nametoyota corolla                                  NA       NA
## origin:nametoyota corolla 1200                             NA       NA
## origin:nametoyota corolla 1600 (sw)                        NA       NA
## origin:nametoyota corolla liftback                         NA       NA
## origin:nametoyota corolla tercel                           NA       NA
## origin:nametoyota corona                                   NA       NA
## origin:nametoyota corona hardtop                           NA       NA
## origin:nametoyota corona liftback                          NA       NA
## origin:nametoyota corona mark ii                           NA       NA
## origin:nametoyota cressida                                 NA       NA
## origin:nametoyota mark ii                                  NA       NA
## origin:nametoyota starlet                                  NA       NA
## origin:nametoyota tercel                                   NA       NA
## origin:nametoyouta corona mark ii (sw)                     NA       NA
## origin:nametriumph tr7 coupe                               NA       NA
## origin:namevokswagen rabbit                                NA       NA
## origin:namevolkswagen 1131 deluxe sedan                    NA       NA
## origin:namevolkswagen 411 (sw)                             NA       NA
## origin:namevolkswagen dasher                               NA       NA
## origin:namevolkswagen jetta                                NA       NA
## origin:namevolkswagen model 111                            NA       NA
## origin:namevolkswagen rabbit                               NA       NA
## origin:namevolkswagen rabbit custom                        NA       NA
## origin:namevolkswagen rabbit custom diesel                 NA       NA
## origin:namevolkswagen rabbit l                             NA       NA
## origin:namevolkswagen scirocco                             NA       NA
## origin:namevolkswagen super beetle                         NA       NA
## origin:namevolkswagen type 3                               NA       NA
## origin:namevolvo 144ea                                     NA       NA
## origin:namevolvo 145e (sw)                                 NA       NA
## origin:namevolvo 244dl                                     NA       NA
## origin:namevolvo 245                                       NA       NA
## origin:namevolvo 264gl                                     NA       NA
## origin:namevolvo diesel                                    NA       NA
## origin:namevw dasher (diesel)                              NA       NA
## origin:namevw pickup                                       NA       NA
## origin:namevw rabbit                                       NA       NA
## origin:namevw rabbit c (diesel)                            NA       NA
## origin:namevw rabbit custom                                NA       NA
## 
## Residual standard error: NaN on 0 degrees of freedom
## Multiple R-squared:      1,  Adjusted R-squared:    NaN 
## F-statistic:   NaN on 391 and 0 DF,  p-value: NA
  • (h)[5 pts] Try a few different transformations of the variables, such as \(\log(X), \sqrt{X}, X^2\). Comment on your findings.
# Fit Linear Regression model with different transformation
different_transformation <- lm(mpg ~ . + I(log(displacement)) + I(sqrt(weight)) + I(weight^2), data = dataAuto)

# Output the summary of the different transformation
summary(different_transformation)
## 
## Call:
## lm(formula = mpg ~ . + I(log(displacement)) + I(sqrt(weight)) + 
##     I(weight^2), data = dataAuto)
## 
## Residuals:
##    Min     1Q Median     3Q    Max 
## -5.639  0.000  0.000  0.000  5.639 
## 
## Coefficients: (1 not defined because of singularities)
##                                            Estimate Std. Error t value Pr(>|t|)
## (Intercept)                              -6.535e+00  1.076e+02  -0.061 0.951706
## cylinders                                -6.653e-01  6.718e-01  -0.990 0.324909
## displacement                              3.514e-02  3.236e-02   1.086 0.280662
## horsepower                               -2.459e-02  3.396e-02  -0.724 0.471011
## weight                                   -4.243e-02  7.319e-02  -0.580 0.563706
## acceleration                             -4.877e-01  1.787e-01  -2.729 0.007779
## year                                      7.294e-01  1.152e-01   6.330 1.23e-08
## origin                                   -2.427e+00  4.332e+00  -0.560 0.576845
## nameamc ambassador dpl                    3.297e+00  3.159e+00   1.044 0.299758
## nameamc ambassador sst                    3.929e+00  3.186e+00   1.233 0.220970
## nameamc concord                           8.841e-02  3.222e+00   0.027 0.978173
## nameamc concord d/l                      -7.853e-01  3.341e+00  -0.235 0.814763
## nameamc concord dl 6                      5.377e-01  3.477e+00   0.155 0.877464
## nameamc gremlin                           1.207e+00  3.098e+00   0.389 0.697970
## nameamc hornet                            1.747e+00  2.984e+00   0.586 0.559714
## nameamc hornet sportabout (sw)            1.607e+00  3.560e+00   0.451 0.652943
## nameamc matador                           1.394e+00  2.617e+00   0.533 0.595810
## nameamc matador (sw)                      2.933e+00  2.821e+00   1.040 0.301502
## nameamc pacer                             1.481e+00  3.505e+00   0.422 0.673805
## nameamc pacer d/l                         2.795e-02  3.522e+00   0.008 0.993687
## nameamc rebel sst                         3.883e+00  3.235e+00   1.200 0.233490
## nameamc spirit dl                        -1.288e+00  4.134e+00  -0.312 0.756073
## nameaudi 100 ls                           2.481e+00  3.484e+00   0.712 0.478444
## nameaudi 100ls                           -1.574e+00  3.072e+00  -0.512 0.609831
## nameaudi 4000                             4.205e+00  3.209e+00   1.311 0.193668
## nameaudi 5000                            -2.387e+00  3.465e+00  -0.689 0.492735
## nameaudi 5000s (diesel)                   1.319e+01  3.731e+00   3.536 0.000672
## nameaudi fox                              3.931e+00  3.301e+00   1.191 0.237069
## namebmw 2002                              4.340e+00  3.473e+00   1.250 0.214907
## namebmw 320i                             -3.898e+00  3.336e+00  -1.168 0.246000
## namebuick century                         2.580e+00  2.988e+00   0.863 0.390531
## namebuick century 350                     1.680e+00  3.179e+00   0.528 0.598662
## namebuick century limited                 4.986e-01  3.643e+00   0.137 0.891457
## namebuick century luxus (sw)              1.969e+00  3.447e+00   0.571 0.569464
## namebuick century special                 1.244e+00  3.387e+00   0.367 0.714329
## namebuick electra 225 custom              1.329e+00  3.958e+00   0.336 0.737894
## namebuick estate wagon (sw)               1.540e+00  2.873e+00   0.536 0.593412
## namebuick lesabre custom                  2.859e+00  3.299e+00   0.867 0.388677
## namebuick opel isuzu deluxe               2.064e-01  4.092e+00   0.050 0.959894
## namebuick regal sport coupe (turbo)      -1.135e+00  3.654e+00  -0.311 0.756845
## namebuick skyhawk                         2.362e+00  3.435e+00   0.688 0.493649
## namebuick skylark                         5.986e-01  3.223e+00   0.186 0.853127
## namebuick skylark 320                     3.848e+00  3.160e+00   1.218 0.226736
## namebuick skylark limited                 1.979e+00  3.878e+00   0.510 0.611179
## namecadillac eldorado                     7.745e+00  3.380e+00   2.292 0.024497
## namecadillac seville                      3.200e+00  3.326e+00   0.962 0.338837
## namecapri ii                             -5.808e-01  3.911e+00  -0.149 0.882302
## namechevroelt chevelle malibu             1.952e+00  3.423e+00   0.570 0.570054
## namechevrolet bel air                     2.585e+00  3.263e+00   0.792 0.430598
## namechevrolet camaro                      7.029e-02  3.891e+00   0.018 0.985631
## namechevrolet caprice classic             1.155e+00  2.636e+00   0.438 0.662435
## namechevrolet cavalier                   -1.265e+00  4.197e+00  -0.301 0.763861
## namechevrolet cavalier 2-door             3.192e+00  4.181e+00   0.763 0.447406
## namechevrolet cavalier wagon             -2.623e+00  4.207e+00  -0.624 0.534672
## namechevrolet chevelle concours (sw)      1.765e+00  3.271e+00   0.540 0.590943
## namechevrolet chevelle malibu             4.098e+00  3.018e+00   1.358 0.178292
## namechevrolet chevelle malibu classic     2.428e+00  2.894e+00   0.839 0.403869
## namechevrolet chevette                   -3.855e-01  3.744e+00  -0.103 0.918249
## namechevrolet citation                    1.665e-01  3.297e+00   0.050 0.959850
## namechevrolet concours                    3.038e-03  3.355e+00   0.001 0.999280
## namechevrolet impala                      2.480e+00  2.648e+00   0.937 0.351748
## namechevrolet malibu                      6.887e-01  2.854e+00   0.241 0.809942
## namechevrolet malibu classic (sw)         1.698e+00  3.298e+00   0.515 0.608164
## namechevrolet monte carlo                 2.502e+00  3.548e+00   0.705 0.482744
## namechevrolet monte carlo landau          1.091e+00  2.763e+00   0.395 0.693919
## namechevrolet monte carlo s               2.903e+00  3.207e+00   0.905 0.368078
## namechevrolet monza 2+2                   2.998e+00  3.467e+00   0.865 0.389671
## namechevrolet nova                        1.404e+00  2.903e+00   0.484 0.629959
## namechevrolet nova custom                 1.148e+00  3.466e+00   0.331 0.741236
## namechevrolet vega                       -3.168e-01  3.451e+00  -0.092 0.927092
## namechevrolet vega (sw)                   9.793e-01  3.938e+00   0.249 0.804205
## namechevrolet vega 2300                   5.217e+00  3.969e+00   1.314 0.192364
## namechevrolet woody                      -2.466e+00  4.167e+00  -0.592 0.555584
## namechevy c10                            -1.834e+00  3.206e+00  -0.572 0.568934
## namechevy c20                             2.955e+00  3.923e+00   0.753 0.453356
## namechevy s-10                            2.380e+00  4.114e+00   0.579 0.564449
## namechrysler cordoba                      1.479e+00  3.269e+00   0.452 0.652133
## namechrysler lebaron medallion           -3.402e+00  3.985e+00  -0.854 0.395688
## namechrysler lebaron salon               -3.861e+00  3.522e+00  -1.096 0.276153
## namechrysler lebaron town @ country (sw)  1.793e+00  3.217e+00   0.557 0.578793
## namechrysler new yorker brougham          2.128e+00  3.582e+00   0.594 0.554140
## namechrysler newport royal                2.925e+00  3.264e+00   0.896 0.372763
## namedatsun 1200                           1.080e+01  6.542e+00   1.651 0.102477
## namedatsun 200-sx                         7.147e-02  6.511e+00   0.011 0.991269
## namedatsun 200sx                          7.672e+00  6.494e+00   1.181 0.240827
## namedatsun 210                            8.838e+00  6.153e+00   1.436 0.154671
## namedatsun 210 mpg                        8.287e+00  6.311e+00   1.313 0.192811
## namedatsun 280-zx                         1.207e+01  6.981e+00   1.729 0.087547
## namedatsun 310                            7.975e+00  6.225e+00   1.281 0.203713
## namedatsun 310 gx                         7.686e+00  6.218e+00   1.236 0.219928
## namedatsun 510                            2.909e+00  6.503e+00   0.447 0.655854
## namedatsun 510 (sw)                       7.427e+00  6.571e+00   1.130 0.261642
## namedatsun 510 hatchback                  1.174e+01  6.475e+00   1.813 0.073428
## namedatsun 610                            1.686e+00  6.610e+00   0.255 0.799280
## namedatsun 710                            5.928e+00  6.349e+00   0.934 0.353201
## namedatsun 810                            2.988e+00  6.993e+00   0.427 0.670309
## namedatsun 810 maxima                     2.924e+00  6.927e+00   0.422 0.674110
## namedatsun b-210                          5.927e+00  6.308e+00   0.940 0.350158
## namedatsun b210                           6.537e+00  6.395e+00   1.022 0.309689
## namedatsun b210 gx                        1.287e+01  6.351e+00   2.027 0.045881
## namedatsun f-10 hatchback                 6.481e+00  6.272e+00   1.033 0.304514
## namedatsun pl510                          5.691e+00  6.297e+00   0.904 0.368791
## namedodge aries se                       -1.039e+00  4.023e+00  -0.258 0.796780
## namedodge aries wagon (sw)               -2.792e+00  3.952e+00  -0.706 0.481954
## namedodge aspen                           3.454e-01  3.012e+00   0.115 0.908988
## namedodge aspen 6                         8.636e-01  3.377e+00   0.256 0.798780
## namedodge aspen se                        3.672e+00  3.412e+00   1.076 0.285011
## namedodge challenger se                   2.740e+00  3.241e+00   0.845 0.400354
## namedodge charger 2.2                     3.942e+00  4.131e+00   0.954 0.342849
## namedodge colt                           -1.000e+00  3.653e+00  -0.274 0.784906
## namedodge colt (sw)                       9.806e-01  4.171e+00   0.235 0.814725
## namedodge colt hardtop                   -1.205e+00  4.119e+00  -0.292 0.770663
## namedodge colt hatchback custom           2.574e+00  4.259e+00   0.604 0.547316
## namedodge colt m/m                        3.074e+00  4.175e+00   0.736 0.463671
## namedodge coronet brougham                2.068e+00  3.210e+00   0.644 0.521260
## namedodge coronet custom                  2.022e+00  3.159e+00   0.640 0.523782
## namedodge coronet custom (sw)             2.221e+00  3.327e+00   0.668 0.506200
## namedodge d100                           -1.496e+00  3.168e+00  -0.472 0.638037
## namedodge d200                            3.504e+00  3.942e+00   0.889 0.376634
## namedodge dart custom                     1.287e-01  3.221e+00   0.040 0.968219
## namedodge diplomat                        2.753e+00  3.201e+00   0.860 0.392270
## namedodge magnum xe                       1.974e+00  3.201e+00   0.617 0.539245
## namedodge monaco (sw)                     2.443e+00  3.797e+00   0.643 0.521796
## namedodge monaco brougham                 9.551e-01  3.199e+00   0.299 0.766063
## namedodge omni                           -8.939e-02  4.192e+00  -0.021 0.983038
## namedodge rampage                        -1.000e+00  4.204e+00  -0.238 0.812559
## namedodge st. regis                       1.939e+00  3.226e+00   0.601 0.549544
## namefiat 124 sport coupe                  1.497e+00  3.330e+00   0.450 0.654113
## namefiat 124 tc                           9.420e-01  3.323e+00   0.284 0.777490
## namefiat 124b                             4.587e+00  3.318e+00   1.382 0.170589
## namefiat 128                             -8.733e-01  2.974e+00  -0.294 0.769782
## namefiat 131                              2.616e+00  3.346e+00   0.782 0.436589
## namefiat strada custom                    6.459e+00  3.224e+00   2.003 0.048433
## namefiat x1.9                             2.780e+00  3.320e+00   0.837 0.404860
## nameford country                          1.053e+00  3.652e+00   0.288 0.773878
## nameford country squire (sw)              1.395e+00  2.857e+00   0.488 0.626795
## nameford escort 2h                       -5.486e-01  4.339e+00  -0.126 0.899706
## nameford escort 4w                        6.725e-01  4.246e+00   0.158 0.874542
## nameford f108                            -1.228e+00  3.215e+00  -0.382 0.703424
## nameford f250                             3.143e+00  3.934e+00   0.799 0.426595
## nameford fairmont                         4.750e-01  3.901e+00   0.122 0.903391
## nameford fairmont (auto)                 -1.718e+00  3.582e+00  -0.480 0.632752
## nameford fairmont (man)                  -1.244e+00  3.926e+00  -0.317 0.752141
## nameford fairmont 4                      -3.211e+00  3.906e+00  -0.822 0.413368
## nameford fairmont futura                 -4.133e+00  3.971e+00  -1.041 0.301003
## nameford fiesta                           3.099e+00  4.277e+00   0.725 0.470785
## nameford futura                          -1.300e+00  3.370e+00  -0.386 0.700589
## nameford galaxie 500                      3.972e+00  2.625e+00   1.513 0.134052
## nameford gran torino                      2.167e+00  2.640e+00   0.821 0.414182
## nameford gran torino (sw)                 3.360e+00  3.018e+00   1.113 0.268822
## nameford granada                          1.992e+00  3.410e+00   0.584 0.560774
## nameford granada ghia                     2.858e+00  3.594e+00   0.795 0.428749
## nameford granada gl                      -2.849e+00  3.554e+00  -0.802 0.425084
## nameford granada l                       -2.583e+00  3.650e+00  -0.708 0.481156
## nameford ltd                              1.711e+00  2.901e+00   0.590 0.556837
## nameford ltd landau                      -1.928e-02  3.250e+00  -0.006 0.995280
## nameford maverick                         1.902e+00  3.113e+00   0.611 0.542912
## nameford mustang                          2.114e+00  3.711e+00   0.570 0.570550
## nameford mustang gl                      -1.951e+00  3.996e+00  -0.488 0.626653
## nameford mustang ii                      -4.196e+00  3.415e+00  -1.229 0.222666
## nameford mustang ii 2+2                   2.360e-01  3.906e+00   0.060 0.951962
## nameford pinto                           -1.524e+00  3.295e+00  -0.462 0.645082
## nameford pinto (sw)                      -1.890e+00  3.972e+00  -0.476 0.635395
## nameford pinto runabout                  -3.224e+00  3.973e+00  -0.812 0.419372
## nameford ranger                          -1.375e+00  4.099e+00  -0.335 0.738177
## nameford thunderbird                      2.304e+00  3.227e+00   0.714 0.477226
## nameford torino                           3.952e+00  3.295e+00   1.199 0.233823
## nameford torino 500                       4.176e+00  3.667e+00   1.139 0.258134
## namehi 1200d                              3.889e+00  4.408e+00   0.882 0.380137
## namehonda accord                          6.659e+00  6.176e+00   1.078 0.284079
## namehonda accord cvcc                     6.740e+00  6.458e+00   1.044 0.299731
## namehonda accord lx                       3.353e+00  6.371e+00   0.526 0.600140
## namehonda civic                           5.783e+00  6.112e+00   0.946 0.346900
## namehonda civic (auto)                    1.362e+00  6.202e+00   0.220 0.826726
## namehonda civic 1300                      3.740e+00  6.191e+00   0.604 0.547419
## namehonda civic 1500 gl                   1.421e+01  6.210e+00   2.289 0.024667
## namehonda civic cvcc                      7.882e+00  6.210e+00   1.269 0.207956
## namehonda prelude                         5.413e+00  6.323e+00   0.856 0.394495
## namemaxda glc deluxe                      4.899e+00  6.197e+00   0.791 0.431466
## namemaxda rx3                            -9.118e+00  6.293e+00  -1.449 0.151170
## namemazda 626                             7.437e+00  6.427e+00   1.157 0.250590
## namemazda glc                             1.837e+01  6.311e+00   2.911 0.004633
## namemazda glc 4                           4.416e+00  6.224e+00   0.709 0.480058
## namemazda glc custom                      1.326e+00  6.272e+00   0.211 0.833038
## namemazda glc custom l                    7.770e+00  6.296e+00   1.234 0.220741
## namemazda glc deluxe                      5.224e+00  6.348e+00   0.823 0.412944
## namemazda rx-4                           -4.742e+00  6.612e+00  -0.717 0.475316
## namemazda rx-7 gs                        -7.775e+00  6.428e+00  -1.210 0.229942
## namemazda rx2 coupe                      -6.541e+00  6.520e+00  -1.003 0.318668
## namemercedes benz 300d                    7.940e+00  3.915e+00   2.028 0.045820
## namemercedes-benz 240d                    9.453e+00  3.797e+00   2.490 0.014799
## namemercedes-benz 280s                    1.674e+00  4.010e+00   0.418 0.677372
## namemercury capri 2000                   -1.734e+00  4.018e+00  -0.432 0.667226
## namemercury capri v6                     -8.350e-01  3.767e+00  -0.222 0.825130
## namemercury cougar brougham               9.286e-01  3.278e+00   0.283 0.777650
## namemercury grand marquis                -3.468e-01  3.261e+00  -0.106 0.915557
## namemercury lynx l                        2.441e+00  4.277e+00   0.571 0.569785
## namemercury marquis                       6.912e-01  3.437e+00   0.201 0.841119
## namemercury marquis brougham              1.135e+00  3.797e+00   0.299 0.765752
## namemercury monarch                      -1.439e-02  3.701e+00  -0.004 0.996906
## namemercury monarch ghia                  2.800e+00  3.227e+00   0.867 0.388202
## namemercury zephyr                       -2.934e-01  3.543e+00  -0.083 0.934192
## namemercury zephyr 6                     -1.585e+00  3.570e+00  -0.444 0.658209
## namenissan stanza xe                      8.075e+00  6.453e+00   1.251 0.214398
## nameoldsmobile cutlass ciera (diesel)     1.491e+01  3.751e+00   3.975 0.000151
## nameoldsmobile cutlass ls                 9.699e+00  3.690e+00   2.629 0.010231
## nameoldsmobile cutlass salon brougham     5.279e+00  3.164e+00   1.668 0.099105
## nameoldsmobile cutlass supreme            3.691e+00  3.377e+00   1.093 0.277711
## nameoldsmobile delta 88 royale            1.920e+00  3.277e+00   0.586 0.559475
## nameoldsmobile omega                     -2.300e+00  3.139e+00  -0.733 0.465739
## nameoldsmobile omega brougham             1.741e+00  3.711e+00   0.469 0.640279
## nameoldsmobile starfire sx               -5.426e-01  3.834e+00  -0.142 0.887818
## nameoldsmobile vista cruiser              1.253e+00  3.386e+00   0.370 0.712409
## nameopel 1900                             2.532e+00  2.948e+00   0.859 0.392768
## nameopel manta                            6.845e-02  2.902e+00   0.024 0.981241
## namepeugeot 304                           5.960e+00  3.547e+00   1.680 0.096752
## namepeugeot 504                           4.235e+00  3.193e+00   1.326 0.188432
## namepeugeot 504 (sw)                      3.302e+00  3.798e+00   0.869 0.387178
## namepeugeot 505s turbo diesel             6.159e+00  3.671e+00   1.678 0.097242
## namepeugeot 604sl                        -1.625e+00  3.845e+00  -0.423 0.673765
## nameplymouth 'cuda 340                    7.802e-01  3.245e+00   0.240 0.810604
## nameplymouth arrow gs                    -2.365e+00  4.033e+00  -0.586 0.559177
## nameplymouth champ                        3.796e+00  4.346e+00   0.873 0.384968
## nameplymouth cricket                      9.194e-01  4.127e+00   0.223 0.824251
## nameplymouth custom suburb                2.398e+00  3.423e+00   0.701 0.485592
## nameplymouth duster                       4.106e+00  3.043e+00   1.349 0.180987
## nameplymouth fury                         3.298e+00  3.459e+00   0.953 0.343178
## nameplymouth fury gran sedan              3.078e+00  3.237e+00   0.951 0.344366
## nameplymouth fury iii                     3.739e+00  2.615e+00   1.430 0.156500
## nameplymouth grand fury                   4.034e+00  3.362e+00   1.200 0.233618
## nameplymouth horizon                      1.626e+00  4.266e+00   0.381 0.704015
## nameplymouth horizon 4                    1.373e+00  4.274e+00   0.321 0.748793
## nameplymouth horizon miser                3.561e+00  4.274e+00   0.833 0.407232
## nameplymouth horizon tc3                  2.596e+00  4.183e+00   0.621 0.536559
## nameplymouth reliant                     -1.854e+00  3.738e+00  -0.496 0.621192
## nameplymouth sapporo                     -1.296e+00  3.838e+00  -0.338 0.736410
## nameplymouth satellite                    5.440e+00  3.239e+00   1.680 0.096848
## nameplymouth satellite custom             1.703e+00  3.468e+00   0.491 0.624695
## nameplymouth satellite custom (sw)        3.236e+00  3.200e+00   1.011 0.314896
## nameplymouth satellite sebring            2.554e+00  3.422e+00   0.746 0.457540
## nameplymouth valiant                      2.407e+00  3.048e+00   0.789 0.432110
## nameplymouth valiant custom               1.190e+00  3.460e+00   0.344 0.731796
## nameplymouth volare                       1.774e+00  3.394e+00   0.523 0.602659
## nameplymouth volare custom                1.880e+00  3.403e+00   0.552 0.582239
## nameplymouth volare premier v8           -1.395e+00  3.163e+00  -0.441 0.660382
## namepontiac astro                        -3.663e-01  3.876e+00  -0.095 0.924942
## namepontiac catalina                      3.635e+00  2.747e+00   1.323 0.189384
## namepontiac catalina brougham             3.858e+00  3.262e+00   1.182 0.240437
## namepontiac firebird                      4.158e+00  3.536e+00   1.176 0.243088
## namepontiac grand prix                    4.482e+00  3.508e+00   1.278 0.205023
## namepontiac grand prix lj                 1.007e+00  3.211e+00   0.314 0.754566
## namepontiac j2000 se hatchback           -1.078e-01  4.231e+00  -0.025 0.979729
## namepontiac lemans v6                     1.002e+00  3.386e+00   0.296 0.768076
## namepontiac phoenix                       2.450e+00  3.592e+00   0.682 0.497116
## namepontiac phoenix lj                    2.008e+00  3.376e+00   0.595 0.553628
## namepontiac safari (sw)                   3.450e+00  4.142e+00   0.833 0.407304
## namepontiac sunbird coupe                -2.499e-01  3.854e+00  -0.065 0.948452
## namepontiac ventura sj                    2.021e+00  3.372e+00   0.599 0.550576
## namerenault 12 (sw)                       2.509e+00  3.413e+00   0.735 0.464266
## namerenault 12tl                          7.874e-02  3.222e+00   0.024 0.980562
## namerenault 5 gtl                         6.208e+00  3.209e+00   1.934 0.056513
## namesaab 99e                              4.645e+00  3.516e+00   1.321 0.190182
## namesaab 99gle                           -2.263e+00  3.467e+00  -0.653 0.515858
## namesaab 99le                             2.059e+00  3.057e+00   0.673 0.502606
## namesubaru                                4.358e+00  6.232e+00   0.699 0.486342
## namesubaru dl                             5.369e+00  6.171e+00   0.870 0.386794
## nametoyota carina                        -4.555e-01  6.623e+00  -0.069 0.945335
## nametoyota celica gt                      7.041e+00  6.621e+00   1.064 0.290653
## nametoyota celica gt liftback            -1.570e+00  6.633e+00  -0.237 0.813453
## nametoyota corolla                        5.139e+00  6.086e+00   0.844 0.400852
## nametoyota corolla 1200                   7.265e+00  6.225e+00   1.167 0.246513
## nametoyota corolla 1600 (sw)              5.481e+00  6.508e+00   0.842 0.402169
## nametoyota corolla liftback               1.870e+00  6.477e+00   0.289 0.773540
## nametoyota corolla tercel                 1.008e+01  6.328e+00   1.593 0.115045
## nametoyota corona                         4.273e+00  6.237e+00   0.685 0.495264
## nametoyota corona hardtop                 3.958e+00  6.626e+00   0.597 0.551966
## nametoyota corona liftback                6.615e+00  6.644e+00   0.996 0.322371
## nametoyota corona mark ii                 5.496e+00  6.688e+00   0.822 0.413544
## nametoyota cressida                       4.195e+00  6.968e+00   0.602 0.548796
## nametoyota mark ii                        3.376e+00  6.944e+00   0.486 0.628092
## nametoyota starlet                        7.850e+00  6.195e+00   1.267 0.208680
## nametoyota tercel                         8.495e+00  6.267e+00   1.356 0.178980
## nametoyouta corona mark ii (sw)           3.779e+00  6.684e+00   0.565 0.573394
## nametriumph tr7 coupe                     7.689e+00  3.276e+00   2.347 0.021348
## namevokswagen rabbit                     -2.606e+00  3.148e+00  -0.828 0.410112
## namevolkswagen 1131 deluxe sedan          3.733e+00  3.591e+00   1.040 0.301561
## namevolkswagen 411 (sw)                   1.622e+00  3.549e+00   0.457 0.648854
## namevolkswagen dasher                    -8.623e-01  2.730e+00  -0.316 0.752876
## namevolkswagen jetta                      1.949e+00  3.184e+00   0.612 0.542263
## namevolkswagen model 111                  3.614e+00  3.477e+00   1.040 0.301590
## namevolkswagen rabbit                    -2.394e-01  2.770e+00  -0.086 0.931319
## namevolkswagen rabbit custom             -2.626e-01  3.169e+00  -0.083 0.934174
## namevolkswagen rabbit custom diesel       1.527e+01  3.366e+00   4.537 1.93e-05
## namevolkswagen rabbit l                   4.132e+00  3.231e+00   1.279 0.204605
## namevolkswagen scirocco                   9.383e-01  3.140e+00   0.299 0.765823
## namevolkswagen super beetle               2.064e+00  3.474e+00   0.594 0.554169
## namevolkswagen type 3                     2.121e+00  3.753e+00   0.565 0.573491
## namevolvo 144ea                          -1.114e+00  3.593e+00  -0.310 0.757310
## namevolvo 145e (sw)                      -1.630e+00  3.662e+00  -0.445 0.657432
## namevolvo 244dl                          -1.179e-01  3.593e+00  -0.033 0.973893
## namevolvo 245                            -8.922e-01  3.660e+00  -0.244 0.808044
## namevolvo 264gl                          -3.031e+00  3.631e+00  -0.835 0.406251
## namevolvo diesel                          9.539e+00  3.800e+00   2.510 0.014036
## namevw dasher (diesel)                    1.628e+01  3.756e+00   4.335 4.11e-05
## namevw pickup                             1.592e+01  3.607e+00   4.413 3.08e-05
## namevw rabbit                             5.126e+00  2.725e+00   1.881 0.063486
## namevw rabbit c (diesel)                  1.540e+01  3.428e+00   4.492 2.29e-05
## namevw rabbit custom                             NA         NA      NA       NA
## I(log(displacement))                     -1.169e+01  7.640e+00  -1.530 0.129980
## I(sqrt(weight))                           2.719e+00  5.430e+00   0.501 0.617883
## I(weight^2)                               2.320e-06  3.810e-06   0.609 0.544305
##                                             
## (Intercept)                                 
## cylinders                                   
## displacement                                
## horsepower                                  
## weight                                      
## acceleration                             ** 
## year                                     ***
## origin                                      
## nameamc ambassador dpl                      
## nameamc ambassador sst                      
## nameamc concord                             
## nameamc concord d/l                         
## nameamc concord dl 6                        
## nameamc gremlin                             
## nameamc hornet                              
## nameamc hornet sportabout (sw)              
## nameamc matador                             
## nameamc matador (sw)                        
## nameamc pacer                               
## nameamc pacer d/l                           
## nameamc rebel sst                           
## nameamc spirit dl                           
## nameaudi 100 ls                             
## nameaudi 100ls                              
## nameaudi 4000                               
## nameaudi 5000                               
## nameaudi 5000s (diesel)                  ***
## nameaudi fox                                
## namebmw 2002                                
## namebmw 320i                                
## namebuick century                           
## namebuick century 350                       
## namebuick century limited                   
## namebuick century luxus (sw)                
## namebuick century special                   
## namebuick electra 225 custom                
## namebuick estate wagon (sw)                 
## namebuick lesabre custom                    
## namebuick opel isuzu deluxe                 
## namebuick regal sport coupe (turbo)         
## namebuick skyhawk                           
## namebuick skylark                           
## namebuick skylark 320                       
## namebuick skylark limited                   
## namecadillac eldorado                    *  
## namecadillac seville                        
## namecapri ii                                
## namechevroelt chevelle malibu               
## namechevrolet bel air                       
## namechevrolet camaro                        
## namechevrolet caprice classic               
## namechevrolet cavalier                      
## namechevrolet cavalier 2-door               
## namechevrolet cavalier wagon                
## namechevrolet chevelle concours (sw)        
## namechevrolet chevelle malibu               
## namechevrolet chevelle malibu classic       
## namechevrolet chevette                      
## namechevrolet citation                      
## namechevrolet concours                      
## namechevrolet impala                        
## namechevrolet malibu                        
## namechevrolet malibu classic (sw)           
## namechevrolet monte carlo                   
## namechevrolet monte carlo landau            
## namechevrolet monte carlo s                 
## namechevrolet monza 2+2                     
## namechevrolet nova                          
## namechevrolet nova custom                   
## namechevrolet vega                          
## namechevrolet vega (sw)                     
## namechevrolet vega 2300                     
## namechevrolet woody                         
## namechevy c10                               
## namechevy c20                               
## namechevy s-10                              
## namechrysler cordoba                        
## namechrysler lebaron medallion              
## namechrysler lebaron salon                  
## namechrysler lebaron town @ country (sw)    
## namechrysler new yorker brougham            
## namechrysler newport royal                  
## namedatsun 1200                             
## namedatsun 200-sx                           
## namedatsun 200sx                            
## namedatsun 210                              
## namedatsun 210 mpg                          
## namedatsun 280-zx                        .  
## namedatsun 310                              
## namedatsun 310 gx                           
## namedatsun 510                              
## namedatsun 510 (sw)                         
## namedatsun 510 hatchback                 .  
## namedatsun 610                              
## namedatsun 710                              
## namedatsun 810                              
## namedatsun 810 maxima                       
## namedatsun b-210                            
## namedatsun b210                             
## namedatsun b210 gx                       *  
## namedatsun f-10 hatchback                   
## namedatsun pl510                            
## namedodge aries se                          
## namedodge aries wagon (sw)                  
## namedodge aspen                             
## namedodge aspen 6                           
## namedodge aspen se                          
## namedodge challenger se                     
## namedodge charger 2.2                       
## namedodge colt                              
## namedodge colt (sw)                         
## namedodge colt hardtop                      
## namedodge colt hatchback custom             
## namedodge colt m/m                          
## namedodge coronet brougham                  
## namedodge coronet custom                    
## namedodge coronet custom (sw)               
## namedodge d100                              
## namedodge d200                              
## namedodge dart custom                       
## namedodge diplomat                          
## namedodge magnum xe                         
## namedodge monaco (sw)                       
## namedodge monaco brougham                   
## namedodge omni                              
## namedodge rampage                           
## namedodge st. regis                         
## namefiat 124 sport coupe                    
## namefiat 124 tc                             
## namefiat 124b                               
## namefiat 128                                
## namefiat 131                                
## namefiat strada custom                   *  
## namefiat x1.9                               
## nameford country                            
## nameford country squire (sw)                
## nameford escort 2h                          
## nameford escort 4w                          
## nameford f108                               
## nameford f250                               
## nameford fairmont                           
## nameford fairmont (auto)                    
## nameford fairmont (man)                     
## nameford fairmont 4                         
## nameford fairmont futura                    
## nameford fiesta                             
## nameford futura                             
## nameford galaxie 500                        
## nameford gran torino                        
## nameford gran torino (sw)                   
## nameford granada                            
## nameford granada ghia                       
## nameford granada gl                         
## nameford granada l                          
## nameford ltd                                
## nameford ltd landau                         
## nameford maverick                           
## nameford mustang                            
## nameford mustang gl                         
## nameford mustang ii                         
## nameford mustang ii 2+2                     
## nameford pinto                              
## nameford pinto (sw)                         
## nameford pinto runabout                     
## nameford ranger                             
## nameford thunderbird                        
## nameford torino                             
## nameford torino 500                         
## namehi 1200d                                
## namehonda accord                            
## namehonda accord cvcc                       
## namehonda accord lx                         
## namehonda civic                             
## namehonda civic (auto)                      
## namehonda civic 1300                        
## namehonda civic 1500 gl                  *  
## namehonda civic cvcc                        
## namehonda prelude                           
## namemaxda glc deluxe                        
## namemaxda rx3                               
## namemazda 626                               
## namemazda glc                            ** 
## namemazda glc 4                             
## namemazda glc custom                        
## namemazda glc custom l                      
## namemazda glc deluxe                        
## namemazda rx-4                              
## namemazda rx-7 gs                           
## namemazda rx2 coupe                         
## namemercedes benz 300d                   *  
## namemercedes-benz 240d                   *  
## namemercedes-benz 280s                      
## namemercury capri 2000                      
## namemercury capri v6                        
## namemercury cougar brougham                 
## namemercury grand marquis                   
## namemercury lynx l                          
## namemercury marquis                         
## namemercury marquis brougham                
## namemercury monarch                         
## namemercury monarch ghia                    
## namemercury zephyr                          
## namemercury zephyr 6                        
## namenissan stanza xe                        
## nameoldsmobile cutlass ciera (diesel)    ***
## nameoldsmobile cutlass ls                *  
## nameoldsmobile cutlass salon brougham    .  
## nameoldsmobile cutlass supreme              
## nameoldsmobile delta 88 royale              
## nameoldsmobile omega                        
## nameoldsmobile omega brougham               
## nameoldsmobile starfire sx                  
## nameoldsmobile vista cruiser                
## nameopel 1900                               
## nameopel manta                              
## namepeugeot 304                          .  
## namepeugeot 504                             
## namepeugeot 504 (sw)                        
## namepeugeot 505s turbo diesel            .  
## namepeugeot 604sl                           
## nameplymouth 'cuda 340                      
## nameplymouth arrow gs                       
## nameplymouth champ                          
## nameplymouth cricket                        
## nameplymouth custom suburb                  
## nameplymouth duster                         
## nameplymouth fury                           
## nameplymouth fury gran sedan                
## nameplymouth fury iii                       
## nameplymouth grand fury                     
## nameplymouth horizon                        
## nameplymouth horizon 4                      
## nameplymouth horizon miser                  
## nameplymouth horizon tc3                    
## nameplymouth reliant                        
## nameplymouth sapporo                        
## nameplymouth satellite                   .  
## nameplymouth satellite custom               
## nameplymouth satellite custom (sw)          
## nameplymouth satellite sebring              
## nameplymouth valiant                        
## nameplymouth valiant custom                 
## nameplymouth volare                         
## nameplymouth volare custom                  
## nameplymouth volare premier v8              
## namepontiac astro                           
## namepontiac catalina                        
## namepontiac catalina brougham               
## namepontiac firebird                        
## namepontiac grand prix                      
## namepontiac grand prix lj                   
## namepontiac j2000 se hatchback              
## namepontiac lemans v6                       
## namepontiac phoenix                         
## namepontiac phoenix lj                      
## namepontiac safari (sw)                     
## namepontiac sunbird coupe                   
## namepontiac ventura sj                      
## namerenault 12 (sw)                         
## namerenault 12tl                            
## namerenault 5 gtl                        .  
## namesaab 99e                                
## namesaab 99gle                              
## namesaab 99le                               
## namesubaru                                  
## namesubaru dl                               
## nametoyota carina                           
## nametoyota celica gt                        
## nametoyota celica gt liftback               
## nametoyota corolla                          
## nametoyota corolla 1200                     
## nametoyota corolla 1600 (sw)                
## nametoyota corolla liftback                 
## nametoyota corolla tercel                   
## nametoyota corona                           
## nametoyota corona hardtop                   
## nametoyota corona liftback                  
## nametoyota corona mark ii                   
## nametoyota cressida                         
## nametoyota mark ii                          
## nametoyota starlet                          
## nametoyota tercel                           
## nametoyouta corona mark ii (sw)             
## nametriumph tr7 coupe                    *  
## namevokswagen rabbit                        
## namevolkswagen 1131 deluxe sedan            
## namevolkswagen 411 (sw)                     
## namevolkswagen dasher                       
## namevolkswagen jetta                        
## namevolkswagen model 111                    
## namevolkswagen rabbit                       
## namevolkswagen rabbit custom                
## namevolkswagen rabbit custom diesel      ***
## namevolkswagen rabbit l                     
## namevolkswagen scirocco                     
## namevolkswagen super beetle                 
## namevolkswagen type 3                       
## namevolvo 144ea                             
## namevolvo 145e (sw)                         
## namevolvo 244dl                             
## namevolvo 245                               
## namevolvo 264gl                             
## namevolvo diesel                         *  
## namevw dasher (diesel)                   ***
## namevw pickup                            ***
## namevw rabbit                            .  
## namevw rabbit c (diesel)                 ***
## namevw rabbit custom                        
## I(log(displacement))                        
## I(sqrt(weight))                             
## I(weight^2)                                 
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 2.206 on 82 degrees of freedom
## Multiple R-squared:  0.9832, Adjusted R-squared:  0.9201 
## F-statistic: 15.57 on 309 and 82 DF,  p-value: < 2.2e-16